2019 Fiscal Year Annual Research Report
Gravitational wave physics and astronomy: Genesis
Project Area | Gravitational wave physics and astronomy: Genesis |
Project/Area Number |
17H06357
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Research Institution | Kyoto University |
Principal Investigator |
田中 貴浩 京都大学, 理学研究科, 教授 (40281117)
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Co-Investigator(Kenkyū-buntansha) |
固武 慶 福岡大学, 理学部, 教授 (20435506)
田越 秀行 東京大学, 宇宙線研究所, 教授 (30311765)
向山 信治 京都大学, 基礎物理学研究所, 教授 (40396809)
大向 一行 東北大学, 理学研究科, 教授 (70390622)
河合 誠之 東京工業大学, 理学院, 教授 (80195031)
吉田 道利 国立天文台, ハワイ観測所, 教授 (90270446)
ヴァギンズ マーク 東京大学, カブリ数物連携宇宙研究機構, 教授 (90509902)
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Project Period (FY) |
2017-06-30 – 2022-03-31
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Keywords | 宇宙物理学 / 重力波 / ブラックホール / 中性子星 / 超新星爆発 / 重元素合成 / 重力理論 / 星形成 |
Outline of Annual Research Achievements |
2017年度にスタートした本新学術領域は,この好機を活かすために,重力波データ解析,対応天体観測,理論的研究が連携するすることで,重要な成果を挙げるとともに,将来を担う若手研究者の育成をおこない,この新しい学問の創世をリードすることを目指すものです.3回目の重力波本格観測がおこなわれ,多数の連星合体イベントが報告されており,本領域でも関連する研究が進展しました. 例を挙げると,注目されていた合体後に生成されるブラックホールからのこだま的な重力波について,非物理的なテンプレートに対する解析では何らかの弱い信号があることを示唆するが,ブラックホール近傍が反射壁となっているという仮説を支持するものでないことを独自の解析で明らかにしました.また,連星中性子星合体からの重力波解析では,独自の高精度な数値相対論重力波波形モデルを用いた潮汐変形率解析から中性子星の潮汐変形率に関して現時点でのデータに対しては数値計算のモデルによる差異が統計誤差の範囲であることを明らかにしました. 他にも大きな進展として,超新星爆発に関して本領域が取り組んでいる水チェレンコフ検出器にガドリニウムを溶解させることで反ニュートリノの識別能力を大幅に向上させる手法のスーパーカミオカンデへの導入が着々と進んでいます.ガドリニウム溶解により,超新星起源の背景ニュートリノ信号を数万倍以上もある宇宙線起源の雑音から識別可能になり,背景ニュートリノ検出の実現に大きく近づきました. 理論的な研究においても、連星形成や超新星爆発のシミュレーションの進展など多くの成果が挙がっています, このような研究面での進展に加えて,領域から多数の若手研究者海外派遣を行い積極的な若手人材育成を進めてきました.派遣の総数は15名を数え,その成果は領域HPに報告されています.
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Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
領域の発足直後に,LIGO/VirgoによるGW170817の発見があり,その後,2019年度から2020年度にかけて3回目の重力波本格観測が行われました.この観測の最後には日本のKAGRAも観測を開始しました.これまでに得られた連星合体イベントの数は50を上回り,これらのデータを用いた様々な議論が可能になってきています.これにより,多くの科学的成果が本領域から発信されました。本年度も上記に示した以外にも、重力波観測から派生する多くの研究成果が得られています。特に計画研究の枠にとらわれない連携研究でも多数の成果を挙げています。 これらの成果はProg. of Theor. and Exp. Phys.の特集として,重力波物理学・天文学の進展について本領域メンバーが中心となったレビュー論文を執筆し掲載が決定しています. また、1)Third Annual Area Symposium,2) Area Workshop 2020 Winter,3) The 29th Workshop on General Relativity and Gravitation in Japan, JGRG29(協賛), 4) 4M-COCOS: Multi-dimensional Modeling and Multi-Messenger observation from Core-Collapse Supernovae 5) Area workshop 2019 Early Summer等の多数の研究会を主催し、ニュースレター3号も発刊しました。
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Strategy for Future Research Activity |
基本的な方針に変更はありません。 今後も、計画研究をまたぐ研究会などを組織して、計画研究間の連携と相互批判をより密接におこなっていきます。とりわけ、先進的な重力波データ解析手法の開発実装において世界に先駆けた研究成果を挙げることは、本領域の目玉のひとつである。この分野は組織的な取り組みなしに大きな成果を期待することが特に難しい分野です。今後LIGO/VirgoとKAGRAの連携が進む中で、共同の論文執筆という方向に向かうと思われますが、その中でも存在感を示すことのできる成果が挙がるように領域を挙げて取り組んでいきます。 総括班による国際活動としては、2019年度は8件の海外からの招聘、9件の派遣を総括班としておこないました。6件の国際活動報告記事を新たにWeb上に掲載しました。現在コロナ禍のために派遣招聘が行えない状況が続いていますが、新しく始めたウェビナーシリーズ、および、オンライン開催による領域ワークショップを通じて領域の活性化に努めていきたい。
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[Journal Article] The status of KAGRA underground cryogenic gravitational wave telescope2020
Author(s)
Akutsu T. , Ando M. , Araya A. , Aritomi N. , Asada H. , Aso Y. , Atsuta S. , Awai K. , Barton M. A. , Cannon K. , et al.
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Journal Title
Journal of Physics: Conference Series
Volume: 1342
Pages: 12014
DOI
Peer Reviewed / Int'l Joint Research
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[Journal Article] An arm length stabilization system for KAGRA and future gravitational-wave detectors2020
Author(s)
Akutsu T , Ando M , Arai K , Arai K , Arai Y , Araki S , Araya A , Aritomi N , Aso Y , Bae S , et al.
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Journal Title
Classical and Quantum Gravity
Volume: 37
Pages: 35004
DOI
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[Journal Article] Fermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-energy Emission from Prompt to Afterglow2020
Author(s)
Ajello M. , Arimoto M. , Axelsson M. , Baldini L. , Barbiellini G. , Bastieri D. , Bellazzini R. , Berretta A. , Bissaldi E. , Blandford R. D. , et al.
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Journal Title
The Astrophysical Journal
Volume: 890
Pages: 9
DOI
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[Journal Article] The HSC-SSP Transient Survey: Implications from Early Photometry and Rise Time of Normal Type Ia Supernovae2020
Author(s)
Jiang Ji-an , Yasuda Naoki , Maeda Keiichi , Doi Mamoru , Shigeyama Toshikazu , Tominaga Nozomu , Tanaka Masaomi , Moriya Takashi J. , Takahashi Ichiro , Suzuki Nao , et al.
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Journal Title
The Astrophysical Journal
Volume: 892
Pages: 25
DOI
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[Journal Article] Multi-epoch Modeling of TXS 0506+056 and Implications for Long-term High-energy Neutrino Emission2020
Author(s)
Petropoulou Maria , Murase Kohta , Santander Marcos , Buson Sara , Tohuvavohu Aaron , Kawamuro Taiki , Vasilopoulos Georgios , Negoro Hiroshi , Ueda Yoshihiro , Siegel Michael H. , et al.
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Journal Title
The Astrophysical Journal
Volume: 891
Pages: 115
DOI
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[Journal Article] Estimation of the detected background by the future gamma ray transient mission CAMELOT2019
Author(s)
Ripa Jakub , Galgoczi Gabor , Werner Norbert , Pal Andras , Ohno Masanori , Meeszaros Laszlo , Mizuno Tsunefumi , Tarcai Norbert , Torigoe Kento , Uchida Nagomi , et al.
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Journal Title
Astronomische Nachrichten
Volume: 340
Pages: 666-673
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[Journal Article] Performance study of a large CsI(Tl) scintillator with an MPPC readout for nanosatellites used to localize gamma-ray bursts2019
Author(s)
Torigoe Kento , Fukazawa Yasushi , Galgoczi Gabor , Mizuno Tsunefumi , Nakazawa Kazuhiro , Ohno Masanori , Pal Andras , Takahashi Hiromitsu , Tanaka Koji , Tarcai Norbert , et al.
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Journal Title
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume: 924
Pages: 316-320
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[Journal Article] Observation of inverse Compton emission from a long γ-ray burst2019
Author(s)
Veres P. , Bhat P. N. , Briggs M. S. , Clevel, W. H. , Hamburg R. , Hui C. M. , Mailyan B. , Preece R. D. , Roberts O. J. , et al.
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Journal Title
Nature
Volume: 575
Pages: 459-463
DOI
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[Journal Article] Black holes, gravitational waves and fundamental physics: a roadmap2019
Author(s)
Barack Leor , Cardoso Vitor , Nissanke Samaya , Sotiriou Thomas P , Askar Abbas , Belczynski Chris , Bertone Gianfranco , Bon Edi , Blas Diego , Brito Richard , et al.
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Journal Title
Classical and Quantum Gravity
Volume: 36
Pages: 143001
DOI
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[Journal Article] Vibration isolation system with a compact damping system for power recycling mirrors of KAGRA2019
Author(s)
Akiyama Y , Akutsu T , Ando M , Arai K , Arai Y , Araki S , Araya A , Aritomi N , Asada H , Aso Y , et al.
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Journal Title
Classical and Quantum Gravity
Volume: 36
Pages: 95015
DOI
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[Journal Article] First cryogenic test operation of underground km-scale gravitational-wave observatory KAGRA2019
Author(s)
Akutsu T , Ando M , Arai K , Arai Y , Araki S , Araya A , Aritomi N , Asada H , Aso Y , Atsuta S , et al.
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Journal Title
Classical and Quantum Gravity
Volume: 36
Pages: 165008
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[Journal Article] MAGIC and Fermi-LAT gamma-ray results on unassociated HAWC sources2019
Author(s)
Ahnen M L , Ansoldi S , Antonelli L A , Arcaro C , Baack D , Babic A , Banerjee B , Bangale P , Barres de Almeida U , Barrio J A , et al.
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Journal Title
Monthly Notices of the Royal Astronomical Society
Volume: 485
Pages: 356-366
DOI
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[Journal Article] GRB 161219B/SN 2016jca: a powerful stellar collapse2019
Author(s)
Ashall C , Mazzali P A , Pian E , Woosley S E , Palazzi E , Prentice S J , Kobayashi S , Holmbo S , Levan A , Perley D , et al.
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Journal Title
Monthly Notices of the Royal Astronomical Society
Volume: 487
Pages: 5824-5839
DOI
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[Journal Article] On the observational behaviour of the highly polarized Type IIn supernova SN_2017hcc2019
Author(s)
Kumar Brajesh , Eswaraiah Chakali , Singh Avinash , Sahu D K , Anupama G C , Kawabata K S , Yamanaka Masayuki , Otsubo Ikki , Pandey S B , Nakaoka Tatsuya , et al.
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Journal Title
Monthly Notices of the Royal Astronomical Society
Volume: 488
Pages: 3089-3099
DOI
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[Journal Article] The afterglow and kilonova of the short GRB 160821B2019
Author(s)
Troja E , Castro-Tirado A J , Gonzalez J Becerra , Hu Y , Ryan G S , Cenko S B , Ricci R , Novara G , Sanchez-Ramirez R , Acosta-Pulido J A , et al.
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Journal Title
Monthly Notices of the Royal Astronomical Society
Volume: -
Pages: -
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[Journal Article] The Hyper Suprime-Cam SSP transient survey in COSMOS: Overview2019
Author(s)
Yasuda Naoki , Tanaka Masaomi , Tominaga Nozomu , Jiang Ji-an , Moriya Takashi J , Morokuma Tomoki , Suzuki Nao , Takahashi Ichiro , Yamaguchi Masaki S , Maeda Keiichi , et al.
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Journal Title
Publications of the Astronomical Society of Japan
Volume: 71
Pages: -
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[Journal Article] X-ray and optical observations of the black hole candidate MAXI_J1828-2492019
Author(s)
Oda Sonoe , Shidatsu Megumi , Nakahira Satoshi , Tamagawa Toru , Moritani Yuki , Itoh Ryosuke , Ueda Yoshihiro , Negoro Hitoshi , Makishima Kazuo , Kawai Nobuyuki , et al.
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Journal Title
Publications of the Astronomical Society of Japan
Volume: 71
Pages: -
DOI
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[Journal Article] A significant feature in the general relativistic time evolution of the redshift of photons coming from a star orbiting Sgr_A*2019
Author(s)
Saida Hiromi , Nishiyama Shogo , Ohgami Takayuki , Takamori Yohsuke , Takahashi Masaaki , Minowa Yosuke , Najarro Francisco , Hamano Satoshi , Omiya Masashi , Iwamatsu Atsushi , et al.
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Journal Title
Publications of the Astronomical Society of Japan
Volume: -
Pages: -
DOI
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[Journal Article] Okayama Astrophysical Observatory Wide-Field Camera2019
Author(s)
Yanagisawa Kenshi , Shimizu Yasuhiro , Okita Kiichi , Kuroda Daisuke , Tsutsui Hironori , Koyano Hisashi , Izumiura Hideyuki , Yoshida Michitoshi , Ohta Kouji , Kawai Nobuyuki , et al.
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Journal Title
Publications of the Astronomical Society of Japan
Volume: 71
Pages: -
DOI
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[Journal Article] An optical search for transients lasting a few seconds2019
Author(s)
Richmond Michael W , Tanaka Masaomi , Morokuma Tomoki , Sako Shigeyuki , Ohsawa Ryou , Arima Noriaki , Tominaga Nozomu , Doi Mamoru , Aoki Tsutomu , Arimatsu Ko , et al.
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Journal Title
Publications of the Astronomical Society of Japan
Volume: -
Pages: -
DOI
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[Journal Article] Directional limits on persistent gravitational waves using data from Advanced LIGO's first two observing runs2019
Author(s)
Abbott B. P. , Abbott R. , Abbott T. D. , Abraham S. , Acernese F. , Ackley K. , Adams C. , Adhikari R. X. , Adya V. B. , Affeldt C. , et al.
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Journal Title
Physical Review D
Volume: 100
Pages: -
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[Journal Article] Space gravitational-wave antennas DECIGO and B-DECIGO2019
Author(s)
Kawamura Seiji , Nakamura Takashi , Ando Masaki , Seto Naoki , Akutsu Tomotada , Funaki Ikkoh , Ioka Kunihito , Kanda Nobuyuki , Kawano Isao , Musha Mitsuru , et al.
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Journal Title
International Journal of Modern Physics D
Volume: 28
Pages: 1845001
DOI
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[Journal Article] New Constraint on the Atmosphere of (50000) Quaoar from a Stellar Occultation2019
Author(s)
Arimatsu Ko , Ohsawa Ryou , Hashimoto George L. , Urakawa Seitaro , Takahashi Jun , Tozuka Miyako , Itoh Yoichi , Yamashita Misato , Usui Fumihiko , Aoki Tsutomu , et al.
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Journal Title
The Astronomical Journal
Volume: 158
Pages: 236
DOI
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[Journal Article] SN 2017czd: A Rapidly Evolving Supernova from a Weak Explosion of a Type IIb Supernova Progenitor2019
Author(s)
Nakaoka Tatsuya , Moriya Takashi J. , Tanaka Masaomi , Yamanaka Masayuki , Kawabata Koji S. , Maeda Keiichi , Kawabata Miho , Kawahara Naoki , Itagaki Koichi , Ouchi Ryoma , et al.
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Journal Title
The Astrophysical Journal
Volume: 875
Pages: 76
DOI
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[Journal Article] Low-latency Gravitational-wave Alerts for Multimessenger Astronomy during the Second Advanced LIGO and Virgo Observing Run2019
Author(s)
Abbott B. P. , Abbott R. , Abbott T. D. , Abraham S. , Acernese F. , Ackley K. , Adams C. , Adhikari R. X. , Adya V. B. , Affeldt C. , et al.
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Journal Title
The Astrophysical Journal
Volume: 875
Pages: 161
DOI
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[Journal Article] A Decade of Gamma-Ray Bursts Observed by Fermi-LAT: The Second GRB Catalog2019
Author(s)
Ajello M. , Arimoto M. , Axelsson M. , Baldini L. , Barbiellini G. , Bastieri D. , Bellazzini R. , Bhat P. N. , Bissaldi E. , Blandford R. D. , et al.
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Journal Title
The Astrophysical Journal
Volume: 878
Pages: 52
DOI
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[Journal Article] HSC16aayt: A Slowly Evolving Interacting Transient Rising for More than 100 Days2019
Author(s)
Moriya Takashi J. , Tanaka Masaomi , Morokuma Tomoki , Pan Yen-Chen , Quimby Robert M. , Jiang Ji-an , Kawana Kojiro , Maeda Keiichi , Nomoto Ken’ichi , Suzuki Nao , et al.
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Journal Title
The Astrophysical Journal
Volume: 882
Pages: 70
DOI
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Short GRB 160821B: A Reverse Shock, a Refreshed Shock, and a Well-sampled Kilonova2019
Author(s)
Lamb G. P. , Tanvir N. R. , Levan A. J. , Postigo A. de Ugarte , Kawaguchi K. , Corsi A. , Evans P. A. , Gompertz B. , Malesani D. B. , Page K. L. , et al.
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Journal Title
The Astrophysical Journal
Volume: 883
Pages: 48
DOI
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[Journal Article] Discovery and Identification of MAXI J1621-501 as a Type I X-Ray Burster with a Super-orbital Period2019
Author(s)
Gorgone Nicholas M. , Kouveliotou Chryssa , Negoro Hitoshi , Wijers Ralph A. M. J. , Bozzo Enrico , Guiriec Sylvain , Bult Peter , Huppenkothen Daniela , Gogus Ersin , Bahramian Arash , et al.
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Journal Title
The Astrophysical Journal
Volume: 884
Pages: 168
DOI
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[Journal Article] A Rapidly Declining Transient Discovered with the Subaru/Hyper Suprime-Cam2019
Author(s)
Tominaga Nozomu , Morokuma Tomoki , Tanaka Masaomi , Yasuda Naoki , Furusawa Hisanori , Tanaka Masayuki , Jiang Ji-an , Tolstov Alexey , Blinnikov Sergei , Doi Mamoru , et al.
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Journal Title
The Astrophysical Journal
Volume: 885
Pages: 13
DOI
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[Journal Article] Sensitivity of Super-Kamiokande with Gadolinium to Low Energy Antineutrinos from Pre-supernova Emission2019
Author(s)
Simpson C. , Abe K. , Bronner C. , Hayato Y. , Ikeda M. , Ito H. , Iyogi K. , Kameda J. , Kataoka Y. , Kato Y. , et al.
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Journal Title
The Astrophysical Journal
Volume: 885
Pages: 133
DOI
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[Journal Article] First Release of High-Redshift Superluminous Supernovae from the Subaru HIgh- Z SUpernova CAmpaign (SHIZUCA). I. Photometric Properties2019
Author(s)
Moriya Takashi J. , Tanaka Masaomi , Yasuda Naoki , Jiang Ji-an , Lee Chien-Hsiu , Maeda Keiichi , Morokuma Tomoki , Nomoto Ken’ichi , Quimby Robert M. , Suzuki Nao , et al.
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Journal Title
The Astrophysical Journal Supplement Series
Volume: 241
Pages: 16
DOI
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[Journal Article] First Release of High-redshift Superluminous Supernovae from the Subaru HIgh-Z SUpernova CAmpaign (SHIZUCA). II. Spectroscopic Properties2019
Author(s)
Curtin Chris , Cooke Jeff , Moriya Takashi J. , Tanaka Masayuki , Quimby Robert M. , Bernard Stephanie R. , Galbany Lluis , Jiang Ji-an , Lee Chien-Hsiu , Maeda Keiichi , et al.
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Journal Title
The Astrophysical Journal Supplement Series
Volume: 241
Pages: 17
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[Journal Article] Swift-XRT Follow-up of Gravitational-wave Triggers in the Second Advanced LIGO/Virgo Observing Run2019
Author(s)
Klingler N. J. , Kennea J. A. , Evans P. A. , Tohuvavohu A. , Cenko S. B. , Barthelmy S. D. , Beardmore A. P. , Breeveld A. A. , Brown P. J. , Burrows D. N. , et al.
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Journal Title
The Astrophysical Journal Supplement Series
Volume: 245
Pages: 15
DOI
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[Journal Article] SN 2018hna: 1987A-like Supernova with a Signature of Shock Breakout2019
Author(s)
Singh Avinash , Sahu D. K. , Anupama G. C. , Kumar Brajesh , Kumar Harsh , Yamanaka Masayuki , Baklanov Petr V. , Tominaga Nozomu , Blinnikov Sergei I. , Maeda Keiichi , et al.
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Journal Title
The Astrophysical Journal
Volume: 882
Pages: L15
DOI
Peer Reviewed / Open Access / Int'l Joint Research
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