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Inclusive study on gravitational-wave astrophysics

Research Project

Project/Area Number 20H05639
Research Category

Grant-in-Aid for Scientific Research (S)

Allocation TypeSingle-year Grants
Review Section Broad Section B
Research InstitutionThe University of Tokyo

Principal Investigator

Yokoyama Jun'ichi  東京大学, 大学院理学系研究科(理学部), 教授 (50212303)

Co-Investigator(Kenkyū-buntansha) カンノン キップ  東京大学, 大学院理学系研究科(理学部), 教授 (50777886)
仏坂 健太  東京大学, 大学院理学系研究科(理学部), 准教授 (50867033)
伊藤 洋介  大阪公立大学, 大学院理学研究科, 准教授 (60443983)
茂山 俊和  東京大学, 大学院理学系研究科(理学部), 教授 (70211951)
道村 唯太  東京大学, 大学院理学系研究科(理学部), 准教授 (80747006)
Project Period (FY) 2020-08-31 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥202,410,000 (Direct Cost: ¥155,700,000、Indirect Cost: ¥46,710,000)
Fiscal Year 2024: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2023: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Fiscal Year 2022: ¥68,770,000 (Direct Cost: ¥52,900,000、Indirect Cost: ¥15,870,000)
Fiscal Year 2021: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000)
Fiscal Year 2020: ¥109,070,000 (Direct Cost: ¥83,900,000、Indirect Cost: ¥25,170,000)
Keywords重力波 / 独立成分解析 / KAGRA / ブラックホール / 連星中性子星合体 / 原始ブラックホール / ノイズ除去 / QCD相転移 / キロノバ / インフレーション / 量子ゆらぎ / データ解析 / マルチメッセンジャー天文学 / 統計分布 / 数値相対論 / インフレーション宇宙論
Outline of Research at the Start

重力波を用いた宇宙物理学の研究を包括的に展開します。具体的には、①独立成分解析によってノイズを効率的に除去し、KAGRAによる重力波の初検出を目指します。②連星ブラックホールの質量分布関数とパルサーの周期擾乱で観測される長波長重力波背景放射を用いることにより、予想外に多数存在することがわかったブラックホールの正体を明らかにします。また、③連星中性子星合体については、マルチメッセンジャー宇宙物理学において、光学対応物となるガンマ線バースト及びキロノバの物理過程を数値相対論によって明らかにすると共に、r過程元素合成を計算し、銀河の化学進化の観測と照らし合わせて、金や銀などの起源を明らかにします。

Outline of Final Research Achievements

The objective of this research project was to achieve the first detection of gravitational waves by the low-temperature gravitational wave detector KAGRA, and to develop gravitational wave astrophysics through observations by the LIGO-Virgo-KAGRA network, together with theoretical studies of gravitational wave-compatible objects. Although the first gravitational wave detection by KAGRA has not yet been made due to the severe damage caused by the Noto Peninsula earthquake, we have discovered a new method to eliminate detector noise and theoretically demonstrated that the origin of black holes, which are the source of gravitational wave events, is unlikely to have been formed in the early universe. In addition,we succeeded for the first time in the world in calculating the state and nuclear spectrum of the Kilonova nebula phase, an explosive event that occurs after binary neutron star mergers.

Academic Significance and Societal Importance of the Research Achievements

能登半島地震等の影響により、KAGRAによる重力波初検出が棚上げとなったという困難な状況のもと、研究計画を機動的に見直し、ブラックホールの起源に迫り、さらに突発天体における元素合成が銀河の化学進化に及ぼす影響を解析したことは、炭素化合物でできている人間の起源論にも及ぶテーマなので、大きな社会的意義を持っているといえます。また、これまで知られていなかった非線形独立成分解析のマスター方程式を導出したことは、今後多チャンネルが非線形相互作用する系での信号分離に役立てられるので、他分野への応用が期待できる成果です。

Assessment Rating
Interim Assessment

A: 順調に研究が進展しており、期待どおりの成果が見込まれる

Report

(10 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Annual Research Report
  • 2022 Abstract (Interim Assessment) ( PDF )   Annual Research Report   Interim Assessment (Comments) ( PDF )
  • 2021 Annual Research Report
  • 2020 Abstract ( PDF )   Comments on the Screening Results ( PDF )   Annual Research Report
  • Research Products

    (164 results)

All 2025 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (15 results) Journal Article (90 results) (of which Int'l Joint Research: 61 results,  Peer Reviewed: 90 results,  Open Access: 56 results) Presentation (54 results) (of which Int'l Joint Research: 44 results,  Invited: 43 results) Book (1 results) Remarks (3 results) Funded Workshop (1 results)

  • [Int'l Joint Research] California Institute of Technology/Princeton University/MIT(米国)

    • Related Report
      2024 Annual Research Report
  • [Int'l Joint Research] European Gravitational Observatory(イタリア)

    • Related Report
      2024 Annual Research Report
  • [Int'l Joint Research] California Institute of Technology/Princeton University/MIT(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] European Gravitational Observatory(イタリア)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Hebrew University of Jerusalem(イスラエル)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] カリフォルニア工科大学/マサチューセッツ工科大学/ウィスコンシン州立大学(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ヨーロッパ重力研究所/ピサ大学/ローマ大学(イタリア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] 国立清華大学/国立中央大学/國立台湾大学(その他の国・地域)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] 北京師範大学/重慶大学/中国科学院大学(中国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] 延世大学/KASI/KIST(韓国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] プリンストン大学/カリフォルニア工科大学/ペンシルベニア州立大学(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] ヨーロッパ重力波天文台(イタリア)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] ロンドン大学(英国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] マサチューセッツ工科大学/カリフォルニア工科大学/ペンシルベニア州立大学(米国)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Search for Continuous Gravitational Waves from Known Pulsars in the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run2025

    • Author(s)
      LIGO, scientific VIrgo, and KAGRA collaborations including K. Cannon, J. Yokoyama, Y. Michimura, & Y. Itoh
    • Journal Title

      The Astrophysical Journal

      Volume: 983 Issue: 2 Pages: 99-99

    • DOI

      10.3847/1538-4357/adb3a0

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Search for continuous gravitational waves from known pulsars in the first part of the fourth LIGO-Virgo-KAGRA observing run2025

    • Author(s)
      LIGO Scientific, Virgo, and KAGRA Collaboration
    • Journal Title

      Astrophysical Journal

      Volume: 983 Issue: 2 Pages: 99-99

    • DOI

      10.3847/1538-4357/ad9749

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Revisiting Near-infrared Features of Kilonovae: The Importance of Gadolinium2025

    • Author(s)
      Rahmouni Salma、Tanaka Masaomi、Domoto Nanae、Kato Daiji、Hotokezaka Kenta、Aoki Wako、Hirano Teruyuki、Kotani Takayuki、Kuzuhara Masayuki、Tamura Motohide
    • Journal Title

      The Astrophysical Journal

      Volume: 980 Issue: 1 Pages: 43-43

    • DOI

      10.3847/1538-4357/ada251

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Signature of hadron-quark crossover in binary-neutron-star mergers2025

    • Author(s)
      Fujimoto Yuki、Fukushima Kenji、Hotokezaka Kenta、Kyutoku Koutarou
    • Journal Title

      Physical Review D

      Volume: 111 Issue: 6 Pages: 063054-063054

    • DOI

      10.1103/physrevd.111.063054

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparing sharp and smooth transitions of the second slow-roll parameter in single-field inflation2024

    • Author(s)
      Kristiano Jason、Yokoyama Jun'ichi
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 2024 Issue: 10 Pages: 036-036

    • DOI

      10.1088/1475-7516/2024/10/036

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Note on the bispectrum and one-loop corrections in single-field inflation with primordial black hole formation2024

    • Author(s)
      Kristiano Jason、Yokoyama Jun’ichi
    • Journal Title

      Physical Review D

      Volume: 109 Issue: 10 Pages: 103541-103541

    • DOI

      10.1103/physrevd.109.103541

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Constraining Primordial Black Hole Formation from Single-Field Inflation2024

    • Author(s)
      Kristiano Jason、Yokoyama Jun’ichi
    • Journal Title

      Physical Review Letters

      Volume: 132 Issue: 22 Pages: 221003-221003

    • DOI

      10.1103/physrevlett.132.221003

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Search Using GEO600 for Gravitational Waves Coincident with Fast Radio Bursts from SGR 1935+21542024

    • Author(s)
      Abac A. G. et al. The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration
    • Journal Title

      The Astrophysical Journal

      Volume: 977 Issue: 2 Pages: 255-255

    • DOI

      10.3847/1538-4357/ad8de0

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Observation of Gravitational Waves from the Coalescence of a 2.5-4.5 M_sun Compact Object and a Neutron Star2024

    • Author(s)
      LIGO Scientific, Virgo, and KAGRA Collaboration
    • Journal Title

      Astrophsical Journal Letter

      Volume: 970 Issue: 2 Pages: L34-L34

    • DOI

      10.3847/2041-8213/ad5beb

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ultralight vector dark matter search using data from the KAGRA O3GK run2024

    • Author(s)
      Abac A. G. et al. LIGO Scientific, Virgo, and KAGRA Collaborations
    • Journal Title

      Physical Review D

      Volume: 110 Issue: 4 Pages: 42001-42001

    • DOI

      10.1103/physrevd.110.042001

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Thorium in Kilonova Spectra: Exploring the Heaviest Detectable Element2024

    • Author(s)
      Domoto Nanae、Wanajo Shinya、Tanaka Masaomi、Kato Daiji、Hotokezaka Kenta
    • Journal Title

      The Astrophysical Journal

      Volume: 978 Issue: 1 Pages: 99-99

    • DOI

      10.3847/1538-4357/ad96b3

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Radiation hydrodynamical simulations of super-Eddington mass transfer and black hole growth in close binaries2024

    • Author(s)
      Toyouchi Daisuke、Hotokezaka Kenta、Inayoshi Kohei、Kuiper Rolf
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 532 Issue: 4 Pages: 4826-4841

    • DOI

      10.1093/mnras/stae1798

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] On the Formation of the W-shaped O ii Lines in Spectra of Type I Superluminous Supernovae2024

    • Author(s)
      Saito Sei、Tanaka Masaomi、Mazzali Paolo A.、Hachinger Stephan、Hotokezaka Kenta
    • Journal Title

      The Astrophysical Journal

      Volume: 967 Issue: 1 Pages: 13-13

    • DOI

      10.3847/1538-4357/ad39e8

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Radio emission from SN?1181 hosting a white dwarf merger product2024

    • Author(s)
      Ko Takatoshi、Tsuna Daichi、Hatsukade Bunyo、Shigeyama Toshikazu
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 76 Issue: 3 Pages: 475-482

    • DOI

      10.1093/pasj/psae023

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Optically Thick Rotating Magnetic Wind from a Massive White Dwarf Merger Product. II. Axisymmetric Magnetohydrodynamic Simulations2024

    • Author(s)
      Zhong Yici、Kashiyama Kazumi、Takasao Shinsuke、Shigeyama Toshikazu、Fujisawa Kotaro
    • Journal Title

      The Astrophysical Journal

      Volume: 963 Issue: 1 Pages: 26-26

    • DOI

      10.3847/1538-4357/ad1f5c

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Diagnosis of Circumstellar Matter Structure in Interaction-powered Supernovae with Hydrogen Line Features2024

    • Author(s)
      Ishii Ayako T.、Takei Yuki、Tsuna Daichi、Shigeyama Toshikazu、Takahashi Koh
    • Journal Title

      The Astrophysical Journal

      Volume: 961 Issue: 1 Pages: 47-47

    • DOI

      10.3847/1538-4357/ad072b

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Simulating Hydrogen-poor Interaction-powered Supernovae with CHIPS2024

    • Author(s)
      Takei Yuki、Tsuna Daichi、Ko Takatoshi、Shigeyama Toshikazu
    • Journal Title

      The Astrophysical Journal

      Volume: 961 Issue: 1 Pages: 67-67

    • DOI

      10.3847/1538-4357/ad0da4

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Feasibility of loop-gain tuning for general measurement systems inspired by quantum locking for DECIGO2024

    • Author(s)
      Ishikawa T、Kawasaki Y、Tsuji K、Shimizu R、Umemura K、Wu B、Iwaguchi S、Michimura Y、Nagano K、Enomoto Y、Komori K、Doki S、Furusawa A、Kawamura S
    • Journal Title

      Classical and Quantum Gravity

      Volume: 41 Issue: 21 Pages: 215013-215013

    • DOI

      10.1088/1361-6382/ad7cb6

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Physically consistent gravitational waveform for capturing beyond general relativity effects in the compact object merger phase2024

    • Author(s)
      Watarai Daiki、Nishizawa Atsushi、Cannon Kipp
    • Journal Title

      Physical Review D

      Volume: 109 Issue: 8 Pages: 084058-084058

    • DOI

      10.1103/physrevd.109.084058

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Joint Fermi-GBM and Swift-BAT Analysis of Gravitational-wave Candidates from the Third Gravitational-wave Observing Run2024

    • Author(s)
      LIGO Scientific Collaboration, Virgo Collaboration, and KAGRA CollaborationLIGO Scientific Collaboration, Virgo Collaboration, and KAGRA Collaboration
    • Journal Title

      The Astrophysical Journal

      Volume: 964 Issue: 2 Pages: 149-149

    • DOI

      10.3847/1538-4357/ad1eed

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Search for Eccentric Black Hole Coalescences during the Third Observing Run of LIGO and Virgo2024

    • Author(s)
      LIGO Scientific, Virgo, and KAGRA Collaborations including K. Cannon, J. Yokoyama, Y. Michimura, Y. Itoh
    • Journal Title

      The Astrophysical Journal

      Volume: 973 Issue: 2 Pages: 132-132

    • DOI

      10.3847/1538-4357/ad65ce

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The high energy X-ray probe (HEX-P): sensitive broadband X-ray observations of transient phenomena in the 2030s2024

    • Author(s)
      Brightman Murray、Margutti Raffaella、Polzin Ava、Jaodand Amruta、Hotokezaka Kenta、Alford Jason A. J.、Hallinan Gregg、Kammoun Elias、Mooley Kunal、Masterson Megan、Marcotulli Lea、Rau Arne、Wevers Thomas、Younes George A.、Stern Daniel、Garc?a Javier A.、Madsen Kristin
    • Journal Title

      Frontiers in Astronomy and Space Sciences

      Volume: 10 Pages: 1292656-1292656

    • DOI

      10.3389/fspas.2023.1292656

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Testability of the quark-hadron transition using gravitational waves from merging binary neutron stars2024

    • Author(s)
      Harada Reiko、Cannon Kipp、Hotokezaka Kenta、Kyutoku Koutarou
    • Journal Title

      Physical Review D

      Volume: 110 Issue: 12 Pages: 123005-123005

    • DOI

      10.1103/physrevd.110.123005

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Dynamical Model for IRAS 00500+6713: The Remnant of a Type Iax Supernova SN 1181 Hosting a Double Degenerate Merger Product WD J0053112024

    • Author(s)
      Ko Takatoshi、Suzuki Hiromasa、Kashiyama Kazumi、Uchida Hiroyuki、Tanaka Takaaki、Tsuna Daichi、Fujisawa Kotaro、Bamba Aya、Shigeyama Toshikazu
    • Journal Title

      The Astrophysical Journal

      Volume: 969 Issue: 2 Pages: 116-116

    • DOI

      10.3847/1538-4357/ad4d99

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effects of mirror birefringence and its fluctuations to laser interferometric gravitational wave detectors2024

    • Author(s)
      Yuta Michimura, Haoyu Wang, Francisco Salces-Carcoba, Christopher Wipf, Aidan Brooks, Koji Arai, Rana X. Adhikari
    • Journal Title

      Physical Review D

      Volume: 109 Issue: 2 Pages: 22009-22009

    • DOI

      10.1103/physrevd.109.022009

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Overview of KAGRA : Data transfer and management2023

    • Author(s)
      KAGRA Collaboration
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 2023 Issue: 10 Pages: 102-102

    • DOI

      10.1093/ptep/ptad112

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Evaluation of the global magnetic noise for the stochastic gravitational wave background search2023

    • Author(s)
      T. Washimi, I. Fukunaga, Y. Itoh, N. Kanda, A. Nishizawa, J.i. Yokoyama and T. Yokozawa
    • Journal Title

      Proceedings of Science

      Volume: ICRC2023 Pages: 1561-1561

    • DOI

      10.22323/1.444.1561

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Developing a New Nonlinear Independent Component Analysis Scheme2023

    • Author(s)
      Yokoyama Jun'ichi
    • Journal Title

      Proceedings of Science

      Volume: ICRC2023 Pages: 1572-1572

    • DOI

      10.22323/1.444.1572

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reheating process in the R^2 inflationary model with the baryogenesis scenario2023

    • Author(s)
      Jeong Hyun、Kamada Kohei、Starobinsky Alexei A.、Yokoyama Jun'ichi
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 2023 Issue: 11 Pages: 1-29

    • DOI

      10.1088/1475-7516/2023/11/023

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Baryogenesis from sphaleron decoupling2023

    • Author(s)
      Hong Muzi、Kamada Kohei、Yokoyama Jun’ichi
    • Journal Title

      Physical Review D

      Volume: 108 Issue: 6 Pages: 1-9

    • DOI

      10.1103/physrevd.108.063502

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Open Data from the Third Observing Run of LIGO, Virgo, KAGRA, and GEO2023

    • Author(s)
      LIGO Scientific Collaboration, Virgo Collaboration, and KAGRA CollaborationLIGO Scientific Collaboration, Virgo Collaboration, and KAGRA Collaboration
    • Journal Title

      The Astrophysical Journal Supplement Series

      Volume: 267 Issue: 2 Pages: 29-29

    • DOI

      10.3847/1538-4365/acdc9f

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] New description of the scaling evolution of the cosmological magneto-hydrodynamic system2023

    • Author(s)
      Uchida Fumio、Fujiwara Motoko、Kamada Kohei、Yokoyama Jun'ichi
    • Journal Title

      Physics Letters B

      Volume: 843 Pages: 138002-138002

    • DOI

      10.1016/j.physletb.2023.138002

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Transition Probabilities of Near-infrared Ce III Lines from Stellar Spectra: Applications to Kilonovae2023

    • Author(s)
      Nanae Domoto, Jae-Joon Lee, Masaomi Tanaka, Ho-Gyu Lee, Wako Aoki, Miho N. Ishigaki, Shinya Wanajo, Daiji Kato, Hotokezaka Kenta
    • Journal Title

      The Astrophysical Journal

      Volume: 956 Issue: 2 Pages: 113-113

    • DOI

      10.3847/1538-4357/acf65a

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Tellurium emission line in kilonova AT 2017gfo2023

    • Author(s)
      Hotokezaka Kenta、Tanaka Masaomi、Kato Daiji、Gaigalas Gediminas
    • Journal Title

      Monthly Notices of the Royal Astronomical Society: Letters

      Volume: 526 Issue: 1 Pages: L155-L159

    • DOI

      10.1093/mnrasl/slad128

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The First JWST Spectrum of a GRB Afterglow: No Bright Supernova in Observations of the Brightest GRB of all Time, GRB 221009A2023

    • Author(s)
      Levan, A.J., Hotokezaka, K. et al
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 946 Issue: 1 Pages: L28-L28

    • DOI

      10.3847/2041-8213/acc2c1

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] MASTER OT J030227.28+191754.5: A Dwarf Nova at a Massive Oxygen?Neon White Dwarf System?2023

    • Author(s)
      Kimura Mariko、Kashiyama Kazumi、Shigeyama Toshikazu、Tampo Yusuke、Yamada Shinya、Enoto Teruaki
    • Journal Title

      The Astrophysical Journal

      Volume: 951 Issue: 2 Pages: 124-124

    • DOI

      10.3847/1538-4357/acd933

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Initial flash and spectral formation of Type Ia supernovae with an envelope: applications to overluminous SNe Ia2023

    • Author(s)
      Maeda Keiichi, Jiang Ji-an, Doi Mamoru, Kawabata Miho, Shigeyama Toshikazu
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 521 Issue: 2 Pages: 1897-1907

    • DOI

      10.1093/mnras/stad618

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Optimization of Quantum Noise in Space Gravitational-Wave Antenna DECIGO with Optical-Spring Quantum Locking Considering Mixture of Vacuum Fluctuations in Homodyne Detection2023

    • Author(s)
      Kenji Tsuji, Tomohiro Ishikawa, Kentaro Komori, Koji Nagano, Yutaro Enomoto, Yuta Michimura, Kurumi Umemura, Ryuma Shimizu, Bin Wu, Shoki Iwaguchi, Yuki Kawasaki, Akira Furusawa, Seiji Kawamura
    • Journal Title

      Galaxies

      Volume: 11 Issue: 6 Pages: 111-111

    • DOI

      10.3390/galaxies11060111

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Search for subsolar-mass black hole binaries in the second part of Advanced LIGO’s and Advanced Virgo’s third observing run2023

    • Author(s)
      R. Abbott et al. (LIGO Scientific Collaboration, Virgo Collaboration, and KAGRA Collaboration)
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: - Issue: 4 Pages: 5984-5992

    • DOI

      10.1093/mnras/stad588

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Generation of neutrino dark matter, baryon asymmetry, and radiation after quintessential inflation2023

    • Author(s)
      Fujikura Kohei, Hashiba Soichiro, Yokoyama, Jun'ichi"
    • Journal Title

      Physical Review D

      Volume: 107 Issue: 6 Pages: 1-14

    • DOI

      10.1103/physrevd.107.063537

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Noise subtraction from KAGRA O3GK data using Independent Component Analysis2023

    • Author(s)
      Abe H et. al (KAGRA collaboration)
    • Journal Title

      Classical and Quantum Gravity

      Volume: 40 Issue: 8 Pages: 085015-085015

    • DOI

      10.1088/1361-6382/acc0cb

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Gravitational Wave Signal for Quark Matter with Realistic Phase Transition2023

    • Author(s)
      Fujimoto Yuki、Fukushima Kenji、Hotokezaka Kenta、Kyutoku Koutarou
    • Journal Title

      Physical Review Letters

      Volume: 130 Issue: 9 Pages: 091404-091404

    • DOI

      10.1103/physrevlett.130.091404

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Prospects of Gravitational-wave Follow-up through a Wide-field Ultraviolet Satellite: A Dorado Case Study2023

    • Author(s)
      Dorsman Bas、Raaijmakers Geert、Cenko S. Bradley、Nissanke Samaya、Singer Leo P.、Kasliwal Mansi M.、Piro Anthony L.、Bellm Eric C.、Hartmann Dieter H.、Hotokezaka Kenta、Luko?i?t? Kamil?
    • Journal Title

      The Astrophysical Journal

      Volume: 944 Issue: 2 Pages: 126-126

    • DOI

      10.3847/1538-4357/acaa9e

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Stochastic effects on observation of ultralight bosonic dark matter2023

    • Author(s)
      Hiromasa Nakatsuka, Soichiro Morisaki, Tomohiro Fujita, Jun'ya Kume, Yuta Michimura, Koji Nagano, Ippei Obata
    • Journal Title

      Physical Review D

      Volume: 108 Issue: 9 Pages: 092010-092010

    • DOI

      10.1103/physrevd.108.092010

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First results of axion dark matter search with DANCE2023

    • Author(s)
      Yuka Oshima, Hiroki Fujimoto, Jun'ya Kume, Soichiro Morisaki, Koji Nagano, Tomohiro Fujita, Ippei Obata, Atsushi Nishizawa, Yuta Michimura, Masaki Ando
    • Journal Title

      Physical Review D

      Volume: 108 Issue: 7 Pages: 072005-072005

    • DOI

      10.1103/physrevd.108.072005

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First-step experiment for sensitivity improvement of DECIGO: Sensitivity optimization for simulated quantum noise by completing the square2023

    • Author(s)
      Ishikawa Tomohiro、Kawasaki Yuki、Tsuji Kenji、Yamada Rika、Watanabe Izumi、Wu Bin、Iwaguchi Shoki、Shimizu Ryuma、Umemura Kurumi、Nagano Koji、Enomoto Yutaro、Komori Kentaro、Michimura Yuta、Furusawa Akira、Kawamura Seiji
    • Journal Title

      Physical Review D

      Volume: 107 Issue: 2 Pages: 022007-022007

    • DOI

      10.1103/physrevd.107.022007

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Model-based Cross-correlation Search for Gravitational Waves from the Low-mass X-Ray Binary Scorpius X-1 in LIGO O3 Data2022

    • Author(s)
      Abbott R., et al., (The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration)
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 941 Issue: 2 Pages: L30-L30

    • DOI

      10.3847/2041-8213/aca1b0

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Response of the underground environment of the KAGRA observatory against the air pressure disturbance from the Tonga volcanic eruption on January 15, 20222022

    • Author(s)
      T. Washimi, Y. Itoh et al
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 2022 Issue: 11

    • DOI

      10.1093/ptep/ptac128

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Perturbative region on non-Gaussian parameter space in single-field inflation2022

    • Author(s)
      Kristiano Jason、Yokoyama Jun'ichi
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 2022 Issue: 07 Pages: 007-007

    • DOI

      10.1088/1475-7516/2022/07/007

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO-Virgo data2022

    • Author(s)
      B. P. Abbott, H. Shinkai, LIGO-Virgo-KAGRA collaboration
    • Journal Title

      Phys. Rev. D

      Volume: 106 Issue: 4 Pages: 042003-042003

    • DOI

      10.1103/physrevd.106.042003

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Self-similar Solution of Rotating Eruptive Outflows on Its Equatorial Plane2022

    • Author(s)
      Ko Takatoshi、Fujisawa Kotaro、Shigeyama Toshikazu
    • Journal Title

      The Astrophysical Journal

      Volume: 941 Issue: 1 Pages: 38-38

    • DOI

      10.3847/1538-4357/aca095

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Potential Signature of Population III Pair-instability Supernova Ejecta in the BLR Gas of the Most Distant Quasar at z = 7.542022

    • Author(s)
      Yoshii Yuzuru、Sameshima Hiroaki、Tsujimoto Takuji、Shigeyama Toshikazu、Beers Timothy C.、Peterson Bruce A.
    • Journal Title

      The Astrophysical Journal

      Volume: 937 Issue: 2 Pages: 61-61

    • DOI

      10.3847/1538-4357/ac8163

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Eruption of the Envelope of Massive Stars by Energy Injection with Finite Duration2022

    • Author(s)
      Ko Takatoshi、Tsuna Daichi、Takei Yuki、Shigeyama Toshikazu
    • Journal Title

      The Astrophysical Journal

      Volume: 930 Issue: 2 Pages: 168-168

    • DOI

      10.3847/1538-4357/ac67e1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] CHIPS: Complete History of Interaction-powered Supernovae2022

    • Author(s)
      Takei Yuki、Tsuna Daichi、Kuriyama Naoto、Ko Takatoshi、Shigeyama Toshikazu
    • Journal Title

      The Astrophysical Journal

      Volume: 929 Issue: 2 Pages: 177-177

    • DOI

      10.3847/1538-4357/ac60fe

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Training Process of Unsupervised Learning Architecture for Gravity Spy Dataset2022

    • Author(s)
      Yusuke Sakai, Yousuke Itoh, Piljong Jung, Keiko Kokeyama, Chihiro Kozakai, Katsuko T. Nakahira, Shoichi Oshino, Yutaka Shikano, Hirotaka Takahashi, Takashi Uchiyama, Gen Ueshima, Tatsuki Washimi, Takahiro Yamamoto, and Takaaki Yokozawa
    • Journal Title

      Annalen der Physik

      Volume: - Issue: 2 Pages: 2200140-2200140

    • DOI

      10.1002/andp.202200140

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Lanthanide Features in Near-infrared Spectra of Kilonovae2022

    • Author(s)
      Domoto Nanae、Tanaka Masaomi、Kato Daiji、Kawaguchi Kyohei、Hotokezaka Kenta、Wanajo Shinya
    • Journal Title

      The Astrophysical Journal

      Volume: 939 Issue: 1 Pages: 8-8

    • DOI

      10.3847/1538-4357/ac8c36

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] GW170817 4.5 Yr After Merger: Dynamical Ejecta Afterglow Constraints2022

    • Author(s)
      Balasubramanian Arvind、Corsi Alessandra、Mooley Kunal P.、Hotokezaka Kenta、Kaplan David L.、Frail Dale A.、Hallinan Gregg、Lazzati Davide、Murphy Eric J.
    • Journal Title

      The Astrophysical Journal

      Volume: 938 Issue: 1 Pages: 12-12

    • DOI

      10.3847/1538-4357/ac9133

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Tungsten versus Selenium as a potential source of kilonova nebular emission observed by Spitzer2022

    • Author(s)
      Hotokezaka Kenta、Tanaka Masaomi、Kato Daiji、Gaigalas Gediminas
    • Journal Title

      Monthly Notices of the Royal Astronomical Society: Letters

      Volume: 515 Issue: 1 Pages: L89-L93

    • DOI

      10.1093/mnrasl/slac071

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Electromagnetic Counterparts of Binary-neutron-star Mergers Leading to a Strongly Magnetized Long-lived Remnant Neutron Star2022

    • Author(s)
      Kawaguchi Kyohei、Fujibayashi Sho、Hotokezaka Kenta、Shibata Masaru、Wanajo Shinya
    • Journal Title

      The Astrophysical Journal

      Volume: 933 Issue: 1 Pages: 22-22

    • DOI

      10.3847/1538-4357/ac6ef7

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Conceptual design and science cases of a juggled interferometer for gravitational wave detection2022

    • Author(s)
      Wu Bin、Ishikawa Tomohiro、Iwaguchi Shoki、Shimizu Ryuma、Watanabe Izumi、Kawasaki Yuki、Michimura Yuta、Yokoyama Shuichiro、Kawamura Seiji
    • Journal Title

      Physical Review D

      Volume: 106 Issue: 4 Pages: 1-1

    • DOI

      10.1103/physrevd.106.042007

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Angular trapping of a linear-cavity mirror with an optical torsional spring2022

    • Author(s)
      Takuya Kawasaki, Kentaro Komori, Hiroki Fujimoto, Yuta Michimura, Masaki Ando
    • Journal Title

      Physical Review A

      Volume: 106 Issue: 1 Pages: 013514-013514

    • DOI

      10.1103/physreva.106.013514

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Neutron displacement noise-free interferometer for gravitational-wave detection2022

    • Author(s)
      Atsushi Nishizawa, Shoki Iwaguchi, Yanbei Chen, Taigen Morimoto, Tomohiro Ishikawa, Bin Wu, Izumi Watanabe, Yuki Kawasaki, Ryuma Shimizu, Hirohiko Shimizu, Masaaki Kitaguchi, Yuta Michimura, and Seiji Kawamura
    • Journal Title

      Phys. Rev. D

      Volume: 105 Issue: 12 Pages: 124017-124017

    • DOI

      10.1103/physrevd.105.124017

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Displacement-noise-free neutron interferometer for gravitational wave detection using a single Mach-Zehnder configuration2022

    • Author(s)
      Shoki Iwaguchi, Atsushi Nishizawa, Yanbei Chen, Yuki Kawasaki, Masaaki Kitaguchi, Taigen Morimoto, Tomohiro Ishikawa, Bin Wu, Izumi Watanabe, Ryuma Shimizu, Hirohiko Shimizu, Yuta Michimura, Seiji Kawamura
    • Journal Title

      Phys. Lett. A

      Volume: 441 Pages: 128150-128150

    • DOI

      10.1016/j.physleta.2022.128150

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] First joint observation by the underground gravitational-wave detector, KAGRA, with GEO6002022

    • Author(s)
      B. P. Abbott, H. Shinkai, LIGO-Virgo-KAGRA collaboration
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: ptac73 Issue: 6 Pages: 073-073

    • DOI

      10.1093/ptep/ptac073

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] On the Use of CHIME to Detect Long-duration Radio Transients from Neutron Star Mergers2022

    • Author(s)
      Shikauchi Minori、Cannon Kipp、Lin Haoxiang、Totani Tomonori、Shaw J. Richard
    • Journal Title

      The Astrophysical Journal

      Volume: 928 Issue: 1 Pages: 72-72

    • DOI

      10.3847/1538-4357/ac540d

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Why Must Primordial Non-Gaussianity Be Very Small?2022

    • Author(s)
      Kristiano Jason、Yokoyama Jun’ichi
    • Journal Title

      Physical Review Letters

      Volume: 128 Issue: 6 Pages: 061301-061301

    • DOI

      10.1103/physrevlett.128.061301

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Implication of pulsar timing array experiments on cosmological gravitational wave detection2021

    • Author(s)
      Yokoyama Jun’ichi
    • Journal Title

      AAPPS Bulletin

      Volume: 31 Issue: 1 Pages: 17-17

    • DOI

      10.1007/s43673-021-00020-5

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Discovery of the Fastest Early Optical Emission from Overluminous SN Ia 2020hvf: A Thermonuclear Explosion within a Dense Circumstellar Environment2021

    • Author(s)
      Jiang Ji-an, Maeda Keiichi, Kawabata Miho, Doi Mamoru, Shigeyama Toshikazu, Tanaka Masaomi, Tominaga Nozomu, Nomoto Ken’ichi, Niino Yuu, Sako Shigeyuki, Ohsawa Ryou, Schramm Malte, Yamanaka Masayuki, Kobayashi Naoto, Takahashi Hidenori, et al.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 923 Issue: 1 Pages: L8-L8

    • DOI

      10.3847/2041-8213/ac375f

    • NAID

      120007177816

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] AT 2018lqh: Black Hole Born from a Rotating Star?2021

    • Author(s)
      Tsuna Daichi、Kashiyama Kazumi、Shigeyama Toshikazu
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 922 Issue: 2 Pages: L34-L34

    • DOI

      10.3847/2041-8213/ac3997

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An analytical density profile of dense circumstellar medium in Type II supernovae2021

    • Author(s)
      Tsuna Daichi、Takei Yuki、Kuriyama Naoto、Shigeyama Toshikazu
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 73 Issue: 4 Pages: 1128-1136

    • DOI

      10.1093/pasj/psab063

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Necessary Condition for Supernova Fallback Invading Newborn Neutron-star Magnetosphere2021

    • Author(s)
      Zhong Yici、Kashiyama Kazumi、Shigeyama Toshikazu、Takasao Shinsuke
    • Journal Title

      The Astrophysical Journal

      Volume: 917 Issue: 2 Pages: 71-71

    • DOI

      10.3847/1538-4357/ac0a74

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] All-sky search for long-duration gravitational-wave bursts in the third Advanced LIGO and Advanced Virgo run2021

    • Author(s)
      R. Abbott et al.
    • Journal Title

      Physical Review D

      Volume: 104 Issue: 10 Pages: 102001-102001

    • DOI

      10.1103/physrevd.104.102001

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] All-sky search for short gravitational-wave bursts in the third Advanced LIGO and Advanced Virgo run2021

    • Author(s)
      R. Abbott et al. (The LIGO Scientific Collaboration, the Virgo Collaboration, and the KAGRA Collaboration),
    • Journal Title

      Physical Review D

      Volume: 104 Issue: 12 Pages: 122004-122004

    • DOI

      10.1103/physrevd.104.122004

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multiwavelength Emission from Magnetically Arrested Disks around Isolated Black Holes2021

    • Author(s)
      Kimura Shigeo S.、Kashiyama Kazumi、Hotokezaka Kenta
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 922 Issue: 1 Pages: L15-L15

    • DOI

      10.3847/2041-8213/ac35dc

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Hunting wide-area optical surveys for high proper motion isolated neutron stars2021

    • Author(s)
      Toyouchi Daisuke、Hotokezaka Kenta、Takada Masahiro
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 510 Issue: 1 Pages: 611-619

    • DOI

      10.1093/mnras/stab3428

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Radio afterglows from compact binary coalescences: prospects for next-generation telescopes2021

    • Author(s)
      Dobie Dougal、Murphy Tara、Kaplan David L、Hotokezaka Kenta、BonillaAtaides Juan Pablo、Mahony Elizabeth K、Sadler Elaine M
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 505 Issue: 2 Pages: 2647-2661

    • DOI

      10.1093/mnras/stab1468

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Continued Radio Observations of GW170817 3.5 yr Post-merger2021

    • Author(s)
      Balasubramanian Arvind、Corsi Alessandra、Mooley Kunal P.、Brightman Murray、Hallinan Gregg、Hotokezaka Kenta、Kaplan David L.、Lazzati Davide、Murphy Eric J.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 914 Issue: 1 Pages: L20-L20

    • DOI

      10.3847/2041-8213/abfd38

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Challenges Ahead for Multimessenger Analyses of Gravitational Waves and Kilonova: A Case Study on GW1904252021

    • Author(s)
      Raaijmakers Geert、Nissanke Samaya、Foucart Francois、Kasliwal Mansi M.、Bulla Mattia、Fernndez Rodrigo、Henkel Amelia、Hinderer Tanja、Hotokezaka Kenta、Luko K、Venumadhav Tejaswi、Antier Sarah、Coughlin Michael W.、Dietrich Tim、Edwards Thomas D. P.
    • Journal Title

      The Astrophysical Journal

      Volume: 922 Issue: 2 Pages: 269-269

    • DOI

      10.3847/1538-4357/ac222d

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Method for environmental noise estimation via injection tests for ground-based gravitational wave detectors2021

    • Author(s)
      Washimi Tatsuki、Yokozawa Takaaki、Tanaka Taiki、Itoh Yousuke、Kume Jun'ya、Yokoyama Jun’ichi
    • Journal Title

      Classical and Quantum Gravity

      Volume: 38 Issue: 12 Pages: 125005-125005

    • DOI

      10.1088/1361-6382/abf89a

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Constraints on primordial black holes2021

    • Author(s)
      Carr Bernard、Kohri Kazunori、Sendouda Yuuiti、Yokoyama Jun’ichi
    • Journal Title

      Reports on Progress in Physics

      Volume: 84 Issue: 11 Pages: 116902-116902

    • DOI

      10.1088/1361-6633/ac1e31

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Baryon isocurvature constraints on the primordial hypermagnetic fields2021

    • Author(s)
      Kamada Kohei、Uchida Fumio、Yokoyama Jun'ichi
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 2021 Issue: 04 Pages: 034-034

    • DOI

      10.1088/1475-7516/2021/04/034

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Occurrence of tachyonic preheating in the mixed Higgs-R2 model2021

    • Author(s)
      He Minxi、Jinno Ryusuke、Kamada Kohei、Starobinsky Alexei A.、Yokoyama Jun'ichi
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 2021 Issue: 01 Pages: 066-066

    • DOI

      10.1088/1475-7516/2021/01/066

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] GstLAL: A software framework for gravitational wave discovery2021

    • Author(s)
      Cannon Kipp、Caudill Sarah、Chan Chiwai、et al
    • Journal Title

      SoftwareX

      Volume: 14 Pages: 100680-100680

    • DOI

      10.1016/j.softx.2021.100680

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparison between the first and second mass eruptions from progenitors of Type IIn supernovae2021

    • Author(s)
      Kuriyama Naoto、Shigeyama Toshikazu
    • Journal Title

      Astronomy & Astrophysics

      Volume: 646 Pages: A118-A118

    • DOI

      10.1051/0004-6361/202038637

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multiwavelength View of the Type IIn Zoo: Optical to X-Ray Emission Model of Interaction-powered Supernovae2021

    • Author(s)
      Tsuna Daichi、Kashiyama Kazumi、Shigeyama Toshikazu
    • Journal Title

      The Astrophysical Journal

      Volume: 914 Issue: 1 Pages: 64-64

    • DOI

      10.3847/1538-4357/abfaf8

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] First star survivors as metal-rich halo stars that experienced supernova explosions in binary systems2021

    • Author(s)
      Suda Takuma、Saitoh Takayuki R、Moritani Yuki、Matsuno Tadafumi、Shigeyama Toshikazu
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 73 Issue: 3 Pages: 609-629

    • DOI

      10.1093/pasj/psab024

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nebular Emission from Lanthanide-rich Ejecta of Neutron Star Merger2021

    • Author(s)
      Hotokezaka Kenta、Tanaka Masaomi、Kato Daiji、Gaigalas Gediminas
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 506 Pages: 5863-5877

    • DOI

      10.1093/mnras/stab1975

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Overview of KAGRA: Calibration, detector characterization, physical environmental monitors, and the geophysics interferometer2021

    • Author(s)
      A. Akutsu, H. Shinkai, KAGRA collaboration
    • Journal Title

      Progress of Theoretical Experimental Physics

      Volume: ptab018 Issue: 5 Pages: 1-33

    • DOI

      10.1093/ptep/ptab018

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Window function dependence of the novel mass function of primordial black holes2020

    • Author(s)
      Tokeshi, Koki and Inomata, Keisuke and Yokoyama, Jun'ichi
    • Journal Title

      JCAP

      Volume: 12 Issue: 12 Pages: 038-038

    • DOI

      10.1088/1475-7516/2020/12/038

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Overview of KAGRA : KAGRA science2020

    • Author(s)
      A. Akutsu, H. Shinkai, KAGRA collaboration
    • Journal Title

      Progress of Theoretical Experimental Physics

      Volume: ptaa120 Issue: 5 Pages: 1-68

    • DOI

      10.1093/ptep/ptaa120

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Selection Effects in Gravitational-Wave Observations2025

    • Author(s)
      K. Cannon
    • Organizer
      Theories of Astrophysical Big Bangs 2025
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] KAGRA high-frequency upgrade for neutron star physics2025

    • Author(s)
      Y. Michimura
    • Organizer
      Theories of Astrophysical Big Bangs 2025
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Nebular Emission of Neutron Star Merger2025

    • Author(s)
      K. Hotokezaka
    • Organizer
      EMMI Workshop and International Workshop on Nucleosynthesis of Heavy Elements: r-process
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Stochastic inflation and beyond2024

    • Author(s)
      J. Yokoyama
    • Organizer
      Quantum gravity and all of that
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Loop corrections to non-standard inflation2024

    • Author(s)
      J. Yokoyama
    • Organizer
      CosPA 2024
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Quantum aspects of inflationary cosmology2024

    • Author(s)
      J. Yokoyama
    • Organizer
      Joint Annual Conference of Physical Societies in Guangdong-Hong Kong-Macao Greater Bay Area
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Quantum loop effects in inflationary cosmology2024

    • Author(s)
      J. Yokoyama
    • Organizer
      Pacific 2024
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Quantum aspects of inflationary cosmology2024

    • Author(s)
      J. Yokoyama
    • Organizer
      ICTP-AP winter school
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] First results from ultralight vector dark matter search with KAGRA2024

    • Author(s)
      Y. Michimura
    • Organizer
      29th International Symposium on Particles, String and Cosmology
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Updates from UTokyo on QFilter activities2024

    • Author(s)
      Y. Michimura
    • Organizer
      The Post-QFilter QFilter Workshop
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Laser interferometric searches for signatures of dark matter and quantum gravity2024

    • Author(s)
      Y. Michimura
    • Organizer
      QUPosium2024
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Multi-wavelength signatures of neutron star mergers2024

    • Author(s)
      K. Hotokezaka
    • Organizer
      11th International Workshop on Very High Energy Particle Astrophysics
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Electromagnetic signatures of gravitational-wave mergers2024

    • Author(s)
      K. Hotokezaka
    • Organizer
      XXXII IAU General Assembly
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Primordial black holes from single-field inflation?2024

    • Author(s)
      J. Yokoyama
    • Organizer
      IBS CTPU-CGA workshop on black holes
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Identification and Significance Assessment of Compact Object Merger Candidates2024

    • Author(s)
      K. Cannon
    • Organizer
      The 2nd Astronomy Workshop for Beginners
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Status of KAGRA2023

    • Author(s)
      J. Yokoyama
    • Organizer
      Siam Physics Congress 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Small to large-scale fluctuations in the universe2023

    • Author(s)
      J. Yokoyama
    • Organizer
      14th RESCEU symposium
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Primordial black holes from single-field inflation?2023

    • Author(s)
      J. Yokoyama
    • Organizer
      Future perspectives on PBHs
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Developing a new nonlinear independent component analysis scheme2023

    • Author(s)
      J. Yokoyama
    • Organizer
      ICRC 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Kilonova spectrum: phtospheric and nebular phases2023

    • Author(s)
      K. Hotokezaka
    • Organizer
      Multimessenger modeling of neutron star mergers
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Kilonova and neutron star merger plasma2023

    • Author(s)
      K. Hotokezaka
    • Organizer
      14th international colloquium on atomic spectra and oscillator strengths
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Status of KAGRA2023

    • Author(s)
      Y. Itoh
    • Organizer
      ICRC 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Fundamental Physics via Gravitational-Wave Observation2023

    • Author(s)
      K. Cannon
    • Organizer
      Gravitational Wave Probes of Physics Beyond Standard Model
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] The Creation of Multi-messenger Astrophysics: 1st Annual Conference2023

    • Author(s)
      K. Cannon
    • Organizer
      The GstLAL Detection System
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] KAGRA: The Key to Multi-Messenger Astrophysics2023

    • Author(s)
      Y. Michimura
    • Organizer
      Joint RIKEN/N3AS Workshop on Multi-Messenger Astrophysics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Unstable optical levitation for testing gravity-induced quantum entanglement2023

    • Author(s)
      Y. Michimura
    • Organizer
      The 5th QFilter Workshop
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Postscript 2019 or: How I learned to continue worrying and got involved in KAGRA2023

    • Author(s)
      Jun'ichi Yokoyama
    • Organizer
      Workshop on fundamental cosmology: From beginning to end"
    • Related Report
      2022 Annual Research Report
  • [Presentation] Searches for geontropic fluctuations and axion dark matter with LIGO2023

    • Author(s)
      Yuta Michimura
    • Organizer
      Brainstorming new ideas for the km-scale facilities, Online
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Laser interferometric searches for ultralight dark matter: Updates from B01 group2023

    • Author(s)
      Yuta Michimura
    • Organizer
      Transformative Research Area "Dark Matter" FY2022 Symposium, Kavli IPMU and Online
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] KAGRA toward O4 and beyond2022

    • Author(s)
      Jun'ichi Yokoyama
    • Organizer
      15th Asia Pacific Physics Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Status of KAGRA in September 20222022

    • Author(s)
      Jun'ichi Yokoyama
    • Organizer
      LVK meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Kilonova2022

    • Author(s)
      Kenta Hotokezaka
    • Organizer
      NBIA Workshop on Radiation Transfer in Astrophysics
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Element Identification in Kilonova2022

    • Author(s)
      Kenta Hotokezaka
    • Organizer
      EM Counterparts to GW Sources
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Open questions in neutron star mergers (kilonova & r-process)2022

    • Author(s)
      Kenta Hotokezaka
    • Organizer
      TCAN22 on binary neutron stars workshop
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Updates on the Optical Levitation Experiment2022

    • Author(s)
      Yuta Michimura
    • Organizer
      The 4th QFilter Workshop, LMA and Online
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] インフレーションと重力波2022

    • Author(s)
      横山順一
    • Organizer
      日本物理学会年次大会 シンポジウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] KAGRA観測データへの線形独立成分分析の適用2022

    • Author(s)
      小林佑一朗, 粂潤哉, 伊藤洋介, 上野昂, 横山順一, 鷲見貴生, 横澤孝章
    • Organizer
      日本物理学会第77回年次大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 独立成分解析によるKAGRAデータの非線形雑音除去2022

    • Author(s)
      粂潤哉, 小林佑一朗, 伊藤洋介, 上野昂, 横山順一, 鷲見貴生, 横澤孝章
    • Organizer
      日本物理学会第77回年次大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 大型低温重力波望遠鏡KAGRAの現状2022

    • Author(s)
      伊藤洋介
    • Organizer
      日本天文学会2022年春季年会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Quest for the smallness of the primordial non-Gaussianity2021

    • Author(s)
      J. Yokoyama
    • Organizer
      Theoretical Physics at CQuest
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Inflationary cosmology: its quantum nature2021

    • Author(s)
      J. Yokoyama
    • Organizer
      Interntational Conference on Frontier of Physics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Quantum aspects of inflationary cosmology2021

    • Author(s)
      J. Yokoyama
    • Organizer
      1st international symposium on trans-scale quantum science
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Modified gravity in cosmology and gravitational wave physics2021

    • Author(s)
      J. Yokoyama
    • Organizer
      CQuest Workshop
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Jet physics and remnant properties of neutron star mergers2021

    • Author(s)
      Kenta Hotokezaka
    • Organizer
      GWPAW
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Models for the kilonova2021

    • Author(s)
      Kenta Hotokezaka
    • Organizer
      GWUniverse Inauguration Workshop
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 大質量星の大規模質量放出現象の輻射流体シミュレーション:親星外層への エネルキー注入の依存性2021

    • Author(s)
      黄 天鋭, 津名 大地, 武井 勇樹, 茂山 俊和
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] ピークカウント法における球対称ゆらぎの扱いとその物理的帰結2021

    • Author(s)
      渡慶次孝気、横山順一
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] オフライン解析によるKAGRAデータの雑音除去2021

    • Author(s)
      粂潤哉, 伊藤洋介, 横山順一, 鷲見貴生, 横澤孝章, KAGRA collaboration
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] How much SNR fallback can invade newborn pulsar wind and magnetosphere?2021

    • Author(s)
      Yici ZHONG, Kazumi KASHIYAMA, Toshikazu SHIGEYAMA, and Shinsuke TAKASAO
    • Organizer
      日本天文学会2021年春季年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Gravitational waves as a new probe of the universe2020

    • Author(s)
      J. Yokoyama
    • Organizer
      38th SPP conference
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Gravitational waves from the early universe2020

    • Author(s)
      J. Yokoyama
    • Organizer
      Korea-Japan joint session of KPS meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Mixed Higgs R2 inflation2020

    • Author(s)
      J. Yokoyama
    • Organizer
      7th Korea-Japahn workshop on dark energy
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Innumeracy compounding an already difficult situation2020

    • Author(s)
      K. Cannon
    • Organizer
      Canadian Association of Physicists
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Electromagnetic counterparts of neutron star mergers”2020

    • Author(s)
      Kenta Hotokezaka
    • Organizer
      The extreme Universe viewed in very-high-energy gamma-rays 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Book] 一般相対論の基礎から学ぶ 重力レンズと重力波天文学2025

    • Author(s)
      二間瀬 敏史、梅津 敬一、 伊藤 洋介
    • Total Pages
      320
    • Publisher
      日本評論社
    • ISBN
      9784535787216
    • Related Report
      2024 Annual Research Report
  • [Remarks] 原始ブラックホールは生成可能か?

    • URL

      https://www.ipmu.jp/ja/20240530-PBH

    • Related Report
      2024 Annual Research Report
  • [Remarks] 宇宙はじめの凸凹(でこぼこ)はなぜ対称に作られたか?

    • URL

      https://www.s.u-tokyo.ac.jp/ja/press/2022/7768/

    • Related Report
      2021 Annual Research Report
  • [Remarks] Quantum nature makes spacetime fluctuations ...

    • URL

      https://apps.adm.s.u-tokyo.ac.jp/WEB_info/p/p/7784/RhwLtDnz/

    • Related Report
      2021 Annual Research Report
  • [Funded Workshop] LIGO-Virgo-KAGRA collaboration meeting2023

    • Related Report
      2023 Annual Research Report

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Published: 2020-09-07   Modified: 2026-01-26  

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