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Exploring mass and spin of black holes and neutron stars via computations of general relativistic polarized radiative transfer

Research Project

Project/Area Number 18K13594
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 16010:Astronomy-related
Research InstitutionThe University of Tokyo (2020-2023)
National Astronomical Observatory of Japan (2018-2019)

Principal Investigator

Kawashima Tomohisa  東京大学, 宇宙線研究所, 特任研究員 (90750464)

Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsブラックホール / 中性子星 / 一般相対論的輻射輸送 / ブラックホールシャドウ / 多波長放射 / 偏光 / イベント・ホライズン・テレスコープ / 一般相対論的輻射輸送計算 / 降着円盤 / 相対論的ジェット / Event Horizon Telescope / 一般相対論的多波長輻射輸送計算 / X線偏光 / 降着流 / 高エネルギー宇宙物理 / ブラックホール・シャドウ / X線天文学 / 一般相対論 / 輻射輸送
Outline of Final Research Achievements

We developed a general relativistic radiative transfer code to explore the space-time of compact objects, e.g., black holes and neutron stars, and plasma structure surrounding them. We constructed a new method to constrain the black hole spin through radio images of black hole shadows calculated with the code, and provided theoretical interpretations of the black hole shadow and multi-wavelength observation paper by Event Horizon Telescope, contributing to a large-scale international research project. We also revealed that, in the vicinity of the black holes, the radio image of the formation regions of the relativistic jets will be detected by near future observations.

Academic Significance and Societal Importance of the Research Achievements

研究成果の学術的意義は、まずブラックホールシャドウの観測データに対する理論解釈を行なったことで、ブラックホールの質量に制限を与えるとともに一般相対性理論についての検証が行えたことである。さらに、独自のアイディアにより、現状の観測では制限の難しいブラックホールのスピン値について制限を与える新たな手法を構築したことである。またアインシュタインの一般相対性理論やブラックホールは、社会全体において広く高い関心が持たれている。本研究による上記の成果は最先端の研究成果として各種メディアを通して大きく報道され、サイエンスの普及という意味で大きな社会的意義を担ったといえる。

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (170 results)

All 2024 2023 2022 2021 2020 2019 2018 Other

All Int'l Joint Research (36 results) Journal Article (63 results) (of which Int'l Joint Research: 52 results,  Peer Reviewed: 62 results,  Open Access: 48 results) Presentation (59 results) (of which Int'l Joint Research: 22 results,  Invited: 22 results) Remarks (11 results) Funded Workshop (1 results)

  • [Int'l Joint Research] マサチューセッツ工科大学ヘイ スタック観測所/スミソニアン天体物理学観測所/アリゾナ大学(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] フランクフルト大学/マックスプランク電波天文学研 究所(ドイツ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ラドバウド大学(オランダ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ペリメーター研究所(カナダ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] 台湾中央研究院 天文及天文物理研究所(その他の国・地域)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] マサチューセッツ工科大学ヘイスタック観測所/スミソニアン天体物理学観測所/アリゾナ大学(米国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] フランクフルト大学/マックスプランク電波天文学研究所(ドイツ)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] ラドバウド大学(オランダ)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] ペリメーター研究所(カナダ)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] 台湾中央研究院 天文及天文物理研究所(その他の国・地域)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research]

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] MIT Haystack Observatory/Smithsonian Astrophysical Observatory/University of Arizona(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Goethe-Universitaet Frankfurt/Max Planck Institute for Radioastronomy(ドイツ)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Radboud University(オランダ)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Perimeter Institute(カナダ)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ASIAA(台湾)(その他の国・地域)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research]

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] MIT Haystack Observatory/Smithsonian Astrophysical Observatory/University of Arizona(米国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Goethe-Universitaet Frankfurt/Max Planck Institute for Radioastronomy(ドイツ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Radboud University(オランダ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Perimeter Institute(カナダ)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] ASIAA(台湾)(その他の国・地域)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research]

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] MIT Haystack Observatory/Smithsonian Astrophysical Observatory/University of Arizona(米国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Goethe-Universitaet Frankfurt/Max Planck Institute for Radioastronomy(ドイツ)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Radboud University(オランダ)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] ASIAA (台湾)(その他の国・地域)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Perimeter Institute(カナダ)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research]

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] MIT Haystack Observatory/Smithsonian Astrophysical Observatory/University of Arizona(米国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] Goethe-Universitaet Frankfurt/Max Planck Institute for Radioastronomy(ドイツ)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] Radboud University(オランダ)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] ASIAA (台湾)(その他の国・地域)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] Perimeter Institute(カナダ)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research]

    • Related Report
      2018 Research-status Report
  • [Journal Article] First Sagittarius A* Event Horizon Telescope Results. VII. Polarization of the Ring2024

    • Author(s)
      The Event Horizon Telescope Collaboration
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 964 Issue: 2 Pages: L25-L25

    • DOI

      10.3847/2041-8213/ad2df0

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Ordered magnetic fields around the 3C 84 central black hole2024

    • Author(s)
      Paraschos G. F.、Kim J.-Y.、Wielgus M.、et al.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 682 Pages: L3-L3

    • DOI

      10.1051/0004-6361/202348308

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The persistent shadow of the supermassive black hole of M 87. I. Observations, calibration, imaging, and analysis2024

    • Author(s)
      Event Horizon Telescope Collaboration et al., incluing M. Honma, S. Ikeda, M. Sasada
    • Journal Title

      Astronomy & Astronphysics

      Volume: 681 Pages: A79-A79

    • DOI

      10.1051/0004-6361/202347932

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] RAIKOU (来光): A General Relativistic, Multiwavelength Radiative Transfer Code2023

    • Author(s)
      Kawashima Tomohisa、Ohsuga Ken、Takahashi Hiroyuki R.
    • Journal Title

      The Astrophysical Journal

      Volume: 949 Issue: 2 Pages: 101-101

    • DOI

      10.3847/1538-4357/acc94a

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Precessing jet nozzle connecting to a spinning black hole in M872023

    • Author(s)
      Cui Y. et al., incluing M. Honma
    • Journal Title

      Nature

      Volume: 621 Issue: 7980 Pages: 711-715

    • DOI

      10.1038/s41586-023-06479-6

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A ring-like accretion structure in M87 connecting its black hole and jet2023

    • Author(s)
      Ru L. et al., including M. Honma
    • Journal Title

      Nature

      Volume: 616 Issue: 7958 Pages: 686-690

    • DOI

      10.1038/s41586-023-05843-w

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Decomposing the Spectrum of Ultraluminous X-Ray Pulsar NGC 300 ULX-12023

    • Author(s)
      Kobayashi Shogo B.、Noda Hirofumi、Enoto Teruaki、Kawashima Tomohisa、Inoue Akihiro、Ohsuga Ken
    • Journal Title

      The Astrophysical Journal

      Volume: 955 Issue: 2 Pages: 124-124

    • DOI

      10.3847/1538-4357/acf0bb

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparison of Polarized Radiative Transfer Codes Used by the EHT Collaboration2023

    • Author(s)
      Prather Ben S.、Dexter Jason、Moscibrodzka Monika、et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 950 Issue: 1 Pages: 35-35

    • DOI

      10.3847/1538-4357/acc586

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Spectral analysis of a parsec-scale jet in M 87: Observational constraint on the magnetic field strengths in the jet2023

    • Author(s)
      Ro, H. et al., including M. Honma
    • Journal Title

      Astronomy & Astrophysics

      Volume: 673 Pages: A159-A159

    • DOI

      10.1051/0004-6361/202142988

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization2023

    • Author(s)
      Event Horizon Telescope Collaboration et al., incluing M. Honma, S. Ikeda, M. Sasada
    • Journal Title

      Astrophysical Journal Letters

      Volume: 957 Issue: 2 Pages: L20-L20

    • DOI

      10.3847/2041-8213/acff70

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Polarimetric Geometric Modeling for mm-VLBI Observations of Black Holes2023

    • Author(s)
      Roelofs Freek、Johnson Michael D.、Chael Andrew、et al.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 957 Issue: 2 Pages: L21-L21

    • DOI

      10.3847/2041-8213/acff6f

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dynamical energy dissipation of relativistic magnetic bullets2023

    • Author(s)
      Kusafuka Yo、Asano Katsuaki、Ohmura Takumi、Kawashima Tomohisa
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 526 Issue: 1 Pages: 512-522

    • DOI

      10.1093/mnras/stad2804

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A Search for Pulsars around Sgr A* in the First Event Horizon Telescope Data Set2023

    • Author(s)
      Torne Pablo、Liu Kuo、Eatough Ralph P.、et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 959 Issue: 1 Pages: 14-14

    • DOI

      10.3847/1538-4357/acf4f2

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Event Horizon Telescope Image of the Quasar NRAO 5302023

    • Author(s)
      Jorstad Svetlana、Wielgus Maciek、Lico Rocco、et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 943 Issue: 2 Pages: 170-170

    • DOI

      10.3847/1538-4357/acaea8

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Monitoring the Size and Flux Density of Sgr A* during the Active State in 2019 with East Asian VLBI Network2023

    • Author(s)
      Cheng Xiaopeng、Cho Ilje、Kawashima Tomohisa、Kino Motoki、Zhao Guang-Yao、Algaba Juan-Carlos、Kofuji Yutaro、Lee Sang-Sung、Lee Jee-Won、Cheong Whee Yeon、Jiang Wu、Oh Junghwan
    • Journal Title

      Galaxies

      Volume: 11 Issue: 2 Pages: 46-46

    • DOI

      10.3390/galaxies11020046

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Large-scale outflow structure and radiation properties of super-Eddington flow: Dependence on the accretion rates2022

    • Author(s)
      Yoshioka, Shogo ; Mineshige, Shin ; Ohsuga, Ken ; Kawashima, Tomohisa ; Kitaki, Takaaki
    • Journal Title

      PASJ

      Volume: 74 Issue: 6 Pages: 1378-1395

    • DOI

      10.1093/pasj/psac076

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Structure of the super-Eddington outflow and its impact on the cosmological scale2022

    • Author(s)
      Botella Ignacio、Mineshige Shin、Kitaki Takaaki、Ohsuga Ken、Kawashima Tomohisa
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 74 Issue: 2 Pages: 384-397

    • DOI

      10.1093/pasj/psac001

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way2022

    • Author(s)
      Event Horizon Telescope Collaboration
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 930 Issue: 2 Pages: L12-L12

    • DOI

      10.3847/2041-8213/ac6674

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First Sagittarius A* Event Horizon Telescope Results. II. EHT and Multiwavelength Observations, Data Processing, and Calibration2022

    • Author(s)
      Event Horizon Telescope Collaboration
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 930 Issue: 2 Pages: L13-L13

    • DOI

      10.3847/2041-8213/ac6675

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First Sagittarius A* Event Horizon Telescope Results. III. Imaging of the Galactic Center Supermassive Black Hole2022

    • Author(s)
      Event Horizon Telescope Collaboration
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 930 Issue: 2 Pages: L14-L14

    • DOI

      10.3847/2041-8213/ac6429

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First Sagittarius A* Event Horizon Telescope Results. IV. Variability, Morphology, and Black Hole Mass2022

    • Author(s)
      Event Horizon Telescope Collaboration
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 930 Issue: 2 Pages: L15-L15

    • DOI

      10.3847/2041-8213/ac6736

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First Sagittarius A* Event Horizon Telescope Results. V. Testing Astrophysical Models of the Galactic Center Black Hole2022

    • Author(s)
      Event Horizon Telescope Collaboration
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 930 Issue: 2 Pages: L16-L16

    • DOI

      10.3847/2041-8213/ac6672

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First Sagittarius A* Event Horizon Telescope Results. VI. Testing the Black Hole Metric2022

    • Author(s)
      Event Horizon Telescope Collaboration
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 930 Issue: 2 Pages: L17-L17

    • DOI

      10.3847/2041-8213/ac6756

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Selective Dynamical Imaging of Interferometric Data2022

    • Author(s)
      Farah Joseph、Galison Peter、Akiyama Kazunori、et al.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 930 Issue: 2 Pages: L18-L18

    • DOI

      10.3847/2041-8213/ac6615

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Millimeter Light Curves of Sagittarius A* Observed during the 2017 Event Horizon Telescope Campaign2022

    • Author(s)
      Wielgus Maciek、Marchili Nicola、Marti-Vidal Ivan、et al.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 930 Issue: 2 Pages: L19-L19

    • DOI

      10.3847/2041-8213/ac6428

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Universal Power-law Prescription for Variability from Synthetic Images of Black Hole Accretion Flows2022

    • Author(s)
      Georgiev Boris、Pesce Dominic W.、Broderick Avery E.、et al.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 930 Issue: 2 Pages: L20-L20

    • DOI

      10.3847/2041-8213/ac65eb

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Characterizing and Mitigating Intraday Variability: Reconstructing Source Structure in Accreting Black Holes with mm-VLBI2022

    • Author(s)
      Broderick Avery E.、Gold Roman、Georgiev Boris、et al.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 930 Issue: 2 Pages: L21-L21

    • DOI

      10.3847/2041-8213/ac6584

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Investigating the Disk-Jet Structure in M87 through Flux Separation in the Linear and Circular Polarization Images2022

    • Author(s)
      Tsunetoe, Yuh; Mineshige, Shin; Kawashima, Tomohisa; Ohsuga, Ken; Akiyama, Kazunori; Takahashi, Hiroyuki R.
    • Journal Title

      ApJ

      Volume: 931 Issue: 1 Pages: 25-25

    • DOI

      10.3847/1538-4357/ac66dd

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Resolving the Inner Parsec of the Blazar J1924-2914 with the Event Horizon Telescope2022

    • Author(s)
      Issaoun Sara、Wielgus Maciek、Jorstad Svetlana、et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 934 Issue: 2 Pages: 145-145

    • DOI

      10.3847/1538-4357/ac7a40

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Diverse Polarimetric Features of AGN Jets from Various Viewing Angles: Towards a Unified View2022

    • Author(s)
      Tsunetoe, Yuh; Mineshige, Shin; Kawashima, Tomohisa; Ohsuga, Ken; Akiyama, Kazunori; Takahashi, Hiroyuki R.
    • Journal Title

      Galaxies

      Volume: 10 Issue: 5 Pages: 103-113

    • DOI

      10.3390/galaxies10050103

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Implications from the Velocity Profile of the M87 Jet: A Possibility of a Slowly Rotating Black Hole Magnetosphere2022

    • Author(s)
      Kino Motoki、Takahashi Masaaki、Kawashima Tomohisa、Park Jongho、Hada Kazuhiro、Ro Hyunwook、Cui Yuzhu
    • Journal Title

      The Astrophysical Journal

      Volume: 939 Issue: 2 Pages: 83-83

    • DOI

      10.3847/1538-4357/ac8c2f

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Variability of the Black Hole Image in M87 at the Dynamical Timescale2022

    • Author(s)
      Satapathy Kaushik、Psaltis Dimitrios、Ozel Feryal、Hada Kazuhiro、Kino Motoki、et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 925 Issue: 1 Pages: 13-13

    • DOI

      10.3847/1538-4357/ac332e

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Intrinsic Structure of Sagittarius A* at 1.3 cm and 7 mm2022

    • Author(s)
      Cho Ilje、Zhao Guang-Yao、Kawashima Tomohisa、Kino Motoki、Akiyama Kazunori、Johnson Michael D.、Issaoun Sara、Moriyama Kotaro、Cheng Xiaopeng、Algaba Juan-Carlos、Jung Taehyun、Sohn Bong Won、Krichbaum Thomas P.、Wielgus Maciek、Hada Kazuhiro、他51名
    • Journal Title

      The Astrophysical Journal

      Volume: 926 Issue: 2 Pages: 108-108

    • DOI

      10.3847/1538-4357/ac4165

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Mushroom-instability-driven Magnetic Reconnections in Collisionless Relativistic Jets2022

    • Author(s)
      Kawashima Tomohisa、Ishiguro Seiji、Moritaka Toseo、Horiuchi Ritoku、Tomisaka Kohji
    • Journal Title

      The Astrophysical Journal

      Volume: 928 Issue: 1 Pages: 62-62

    • DOI

      10.3847/1538-4357/ac5591

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign2021

    • Author(s)
      EHT Multi-wavelength Science Working Group et al.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 911 Issue: 1 Pages: L11-L11

    • DOI

      10.3847/2041-8213/abef71

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The origins and impact of outflow from super-Eddington flow2021

    • Author(s)
      Kitaki Takaaki、Mineshige Shin、Ohsuga Ken、Kawashima Tomohisa
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 73 Issue: 2 Pages: 450-466

    • DOI

      10.1093/pasj/psab011

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Polarized Image of a Synchrotron-emitting Ring of Gas Orbiting a Black Hole2021

    • Author(s)
      Narayan Ramesh、Palumbo Daniel C. M.、Johnson Michael D.、Kino Motoki、Hada Kazuhiro、et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 912 Issue: 1 Pages: 35-35

    • DOI

      10.3847/1538-4357/abf117

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Constraints on black-hole charges with the 2017 EHT observations of M87*2021

    • Author(s)
      Kocherlakota Prashant、Rezzolla Luciano、Falcke Heino、Hada Kazuhiro、Kino Motoki、et al.
    • Journal Title

      Physical Review D

      Volume: 103 Issue: 10 Pages: 104047-104047

    • DOI

      10.1103/physrevd.103.104047

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Event Horizon Telescope observations of the jet launching and collimation in Centaurus A2021

    • Author(s)
      Janssen Michael、Falcke Heino、Kadler Matthias、Hada Kazuhiro、Kino Motoki、et al.
    • Journal Title

      Nature Astronomy

      Volume: 5 Issue: 10 Pages: 1017-1028

    • DOI

      10.1038/s41550-021-01417-w

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Polarization images of accretion flow around supermassive black holes: Imprints of toroidal field structure2021

    • Author(s)
      Tsunetoe Yuh、Mineshige Shin、Ohsuga Ken、Kawashima Tomohisa、Akiyama Kazunori
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 73 Issue: 4 Pages: 912-928

    • DOI

      10.1093/pasj/psab054

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Jet-bases Emission Model of the EHT2017 Image of M87*2021

    • Author(s)
      Kawashima Tomohisa、Toma Kenji、Kino Motoki、Akiyama Kazunori、Nakamura Masanori、Moriyama Kotaro
    • Journal Title

      The Astrophysical Journal

      Volume: 909 Issue: 2 Pages: 168-168

    • DOI

      10.3847/1538-4357/abd5bb

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Polarimetric Properties of Event Horizon Telescope Targets from ALMA2021

    • Author(s)
      Goddi Ciriaco et al.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 910 Issue: 1 Pages: L14-L14

    • DOI

      10.3847/2041-8213/abee6a

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First M87 Event Horizon Telescope Results. VIII. Magnetic Field Structure near The Event Horizon2021

    • Author(s)
      Event Horizon Telescope Collaboration
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 910 Issue: 1 Pages: L13-L13

    • DOI

      10.3847/2041-8213/abe4de

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First M87 Event Horizon Telescope Results. VII. Polarization of the Ring2021

    • Author(s)
      Akiyama Kazunori et al. including Hiroshi Nagai
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 910 Issue: 1 Pages: L12-L12

    • DOI

      10.3847/2041-8213/abe71d

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Gravitational Test beyond the First Post-Newtonian Order with the Shadow of the M87 Black Hole2020

    • Author(s)
      Psaltis Dimitrios et al. including Hiroshi Nagai
    • Journal Title

      Physical Review Letters

      Volume: 125 Issue: 14 Pages: 141104-141113

    • DOI

      10.1103/physrevlett.125.141104

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Monitoring the Morphology of M87* in 2009-2017 with the Event Horizon Telescope2020

    • Author(s)
      Wielgus Maciek et al. including Hiroshi Nagai
    • Journal Title

      The Astrophysical Journal

      Volume: 901 Issue: 1 Pages: 67-67

    • DOI

      10.3847/1538-4357/abac0d

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Event Horizon Telescope imaging of the archetypal blazar 3C 279 at an extreme 20 microarcsecond resolution2020

    • Author(s)
      Kim Jae-Young et al. including Hiroshi Nagai
    • Journal Title

      Astronomy & Astrophysics

      Volume: 640 Pages: A69-A69

    • DOI

      10.1051/0004-6361/202037493

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Verification of Radiative Transfer Schemes for the EHT2020

    • Author(s)
      Gold Roman et al. including Hiroshi Nagai
    • Journal Title

      The Astrophysical Journal

      Volume: 897 Issue: 2 Pages: 148-148

    • DOI

      10.3847/1538-4357/ab96c6

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] THEMIS: A Parameter Estimation Framework for the Event Horizon Telescope2020

    • Author(s)
      Broderick Avery E. et al. including Hiroshi Nagai
    • Journal Title

      The Astrophysical Journal

      Volume: 897 Issue: 2 Pages: 139-139

    • DOI

      10.3847/1538-4357/ab91a4

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Super-critical column accretion on to strongly magnetized neutron stars in ULX pulsars2020

    • Author(s)
      Kawashima, Tomohisa、 Ohsuga, Ken
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 72 Issue: 1 Pages: 15-15

    • DOI

      10.1093/pasj/psz136

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Pulsed fraction of super-critical column accretion flows on to neutron stars: Modeling of ultraluminous X-ray pulsars2020

    • Author(s)
      Inoue Akihiro、Ohsuga Ken、Kawashima Tomohisa
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 72 Issue: 2

    • DOI

      10.1093/pasj/psaa010

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Polarization imaging of M 87 jets by general relativistic radiative transfer calculation based on GRMHD simulations2020

    • Author(s)
      Tsunetoe Yuh、Mineshige Shin、Ohsuga Ken、Kawashima Tomohisa、Akiyama Kazunori
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 72 Issue: 2

    • DOI

      10.1093/pasj/psaa008

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] SYMBA: An end-to-end VLBI synthetic data generation pipeline2020

    • Author(s)
      Roelofs F.、Janssen M.、Natarajan I.、Deane R.、Davelaar J.、Olivares H.、Porth O.、Paine S. N.、Bouman K. L.、Tilanus R. P. J.、van Bemmel I. M.、Falcke H.、Kawashima T.、 et al.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 636 Pages: A5-A5

    • DOI

      10.1051/0004-6361/201936622

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project2019

    • Author(s)
      Porth Oliver、Chatterjee Koushik、Narayan Ramesh and EHT collaboration
    • Journal Title

      The Astrophysical Journal Supplement Series

      Volume: 243 Issue: 2 Pages: 26-26

    • DOI

      10.3847/1538-4365/ab29fd

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Magnetohydrodynamic simulation code CANS+: Assessments and applications2019

    • Author(s)
      Matsumoto Yosuke, Asahina Yuta, Kudoh Yuki, Kawashima Tomohisa, Matsumoto Jin, Takahashi Hiroyuki R., Minoshima Takashi, Zenitani Seiji, Miyoshi Takahiro, Matsumoto Ryoji
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 71 Issue: 4 Pages: 83-83

    • DOI

      10.1093/pasj/psz064

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole2019

    • Author(s)
      The Event Horizon Telescope Collaboration、Kawashima Tomohisa、 et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 875 Issue: 1 Pages: L1-L1

    • DOI

      10.3847/2041-8213/ab0ec7

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First M87 Event Horizon Telescope Results. II. Array and Instrumentation2019

    • Author(s)
      The Event Horizon Telescope Collaboration、Kawashima Tomohisa、 et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 875 Issue: 1 Pages: L2-L2

    • DOI

      10.3847/2041-8213/ab0c96

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First M87 Event Horizon Telescope Results. III. Data Processing and Calibration2019

    • Author(s)
      The Event Horizon Telescope Collaboration、Kawashima Tomohisa、 et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 875 Issue: 1 Pages: L3-L3

    • DOI

      10.3847/2041-8213/ab0c57

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole2019

    • Author(s)
      The Event Horizon Telescope Collaboration、Kawashima Tomohisa、 et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 875 Issue: 1 Pages: L4-L4

    • DOI

      10.3847/2041-8213/ab0e85

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring2019

    • Author(s)
      The Event Horizon Telescope Collaboration、Kawashima Tomohisa、 et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 875 Issue: 1 Pages: L5-L5

    • DOI

      10.3847/2041-8213/ab0f43

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole2019

    • Author(s)
      The Event Horizon Telescope Collaboration、Kawashima Tomohisa、 et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 875 Issue: 1 Pages: L6-L6

    • DOI

      10.3847/2041-8213/ab1141

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Black Hole Spin Signature in Black Hole Shadow of M87 in Flaring State2019

    • Author(s)
      Kawashima Tomohisa、Kino Motoki、Akiyama Kazunori
    • Journal Title

      The Astrophysical Journal

      Volume: 印刷中

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Systematic two-dimensional radiation-hydrodynamic simulations of super-Eddington accretion flow and outflow: Comparison with the slim disk model2018

    • Author(s)
      Kitaki, Takaaki; Mineshige, Shin; Ohsuga, Ken; Kawashima, Tomohisa
    • Journal Title

      Pub. Astron. Soc. Japan

      Volume: 70 Issue: 6 Pages: 108-108

    • DOI

      10.1093/pasj/psy110

    • NAID

      120007133430

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] 相対論的ジェット中における散乱を考慮した一般相対論的偏光輻射輸送計算2024

    • Author(s)
      竹林晃大、大須賀健、川島朋尚
    • Organizer
      日本天文学会2024年春季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Lense-Thirring 歳差運動を伴う ブラックホール降着流と相対論的ジェットの多波長放射特性2024

    • Author(s)
      川島朋尚、大須賀健、高橋博之
    • Organizer
      ブラックホール磁気圏研究会2024
    • Related Report
      2023 Annual Research Report
  • [Presentation] レンズ-シリング歳差運動を伴うブラックホール降着流と相対論的ジェットの多波長放射特性2024

    • Author(s)
      川島朋尚、大須賀健、高橋博之
    • Organizer
      ブラックホール大研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Particle-In-Cell Simulations of Mushroom-instability-driven Magnetic Reconnections in Collisionless Relativistic Jets2023

    • Author(s)
      Tomohisa Kawashima, Seiji Ishiguro, Toseo Moritaka, Ritoku Horiuchi, Kohji Tomisaka
    • Organizer
      MR2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] PIC Simulations of Mushroom-instability-driven Magnetic Reconnections in Collisionless Relativistic Jets2023

    • Author(s)
      Tomohisa Kawashima, Seiji Ishiguro, Toseo Moritaka, Ritoku Horiuchi, Kohji Tomisaka
    • Organizer
      ASTRONUM2023 (15th International Conference on Numerical Modeling of Space Plasma Flows)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Lense-Thirring 歳差を伴う降着流・ジェットからの多波長放射の時間変動解析2023

    • Author(s)
      川島朋尚、大須賀健、高橋博之
    • Organizer
      日本天文学会2023年秋季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ブラックホール降着流および相対論的ジェットの 一般相対論的多波長輻射輸送計算 ~そしてマルチメッセンジャー研究へ~2023

    • Author(s)
      川島朋尚、大須賀健、高橋博之、浅野勝晃
    • Organizer
      MHD2023 (宇宙プラズマの活動性~天体形成から高エネルギー現象まで~)
    • Related Report
      2023 Annual Research Report
  • [Presentation] Lense-Thirring歳差を伴う降着流・相対論的ジェットの多波長放射特性2023

    • Author(s)
      川島朋尚、大須賀健、高橋博之
    • Organizer
      山田研究会「宇宙における降着現象 ~活動性・多様性の源~」
    • Related Report
      2023 Annual Research Report
  • [Presentation] ブラックホール周囲の構造解明に向けたコンプトン散乱を考慮した一般相対論的偏光輻射輸送計算コードの開発2023

    • Author(s)
      竹林晃大、大須賀健、川島朋尚
    • Organizer
      日本天文学会2023年秋季年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Lense-Thirring歳差運動を伴う降着流と 相対論的ジェットの多波長輻射特性2023

    • Author(s)
      川島朋尚、大須賀健、高橋博之
    • Organizer
      第36回 理論懇シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] Lense-Thirring歳差運動を伴う 降着流・相対論的ジェットの輻射特性2023

    • Author(s)
      川島朋尚、大須賀健、高橋博之
    • Organizer
      高エネルギー宇宙物理学研究会2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Lense-Thirring precession of accretion flows and relativistic jets2023

    • Author(s)
      Tomohisa Kawashima, Takuya Hitomi, Ken Ohsuga, Hiroyuki R. Takahashi
    • Organizer
      Black Hole Astrophysics with VLBI 2023
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Lense-Thirring歳差を伴う降着流・相対論的ジェットの多波長放射特性2023

    • Author(s)
      川島 朋尚, 人見 拓也, 大須賀 健, 高橋 博之
    • Organizer
      ブラックホールジェット・降着円盤・円盤風研究会 2023
    • Related Report
      2022 Research-status Report
  • [Presentation] General Relativistic Multi-wavelength Radiation and Neutrino Transfer Calculations in Black Hole Accretion Flows and Relativistic Jets2022

    • Author(s)
      Tomohisa Kawashima
    • Organizer
      ICPP 2022 (20th International Congress on Plasma Physics)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Images and Spectra of Black hole Accretion Flows Computed by GRRT Code RAIKOU2022

    • Author(s)
      Tomohisa Kawashima, Ken Ohsuga, Hiroyuki R. Takahashi
    • Organizer
      AAPPS-DPP2022 (6th Asia Pacific Conference on Plasma Physics)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Images, Radiation and Neutrino Spectra of Black Hole Accretion Flows Computed by GRRT Code RAIKOU2022

    • Author(s)
      Tomohisa Kawashima, Katsuaki Asano, Ken Ohsuga, Hiroyuki R. Takahashi
    • Organizer
      APPC15 (15th Asia-Pacific Physics Conference)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Computations of images, photon and neutrino spectra using a general relativistic radiative transfer code RAIKOU'2022

    • Author(s)
      Tomohisa Kawashima, Ken Ohsuga, Hiroyuki R. Takahashi, Katsuaki Asano
    • Organizer
      The 9th East Asian Numerical Astrophysics Meeting
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] ブラックホール降着流の観測的特徴: 一般相対論的磁気流体シミュレーション・データに基づく一般相対論的輻射輸送計算2022

    • Author(s)
      川島 朋尚, 大須賀 健, 高橋 博之
    • Organizer
      日本流体力学会 年会2022
    • Related Report
      2022 Research-status Report
  • [Presentation] EHT による Sgr A*の観測成果 V:銀河中心ブラックホールの降着流モデルの検証2022

    • Author(s)
      川島 朋尚, 水野 陽介, 森山 小太郎, 紀 基樹, 中村 雅徳, 他 EHT Collaboration
    • Organizer
      日本天文学会2022年秋季年会
    • Related Report
      2022 Research-status Report
  • [Presentation] 将来のX線干渉計観測に向けたX線ブラックホールシャドウ予測2022

    • Author(s)
      川島 朋尚, 大須賀 健, 高橋 博之
    • Organizer
      日本天文学会2022年秋季年会
    • Related Report
      2022 Research-status Report
  • [Presentation] Time dependent and multi-wavelength radiative properties of accretion flows and relativistic jets2022

    • Author(s)
      Kawashima Tomohisa, Ohsuga Ken, Takahashi Hiroyuki R, Hitomi Takuya
    • Organizer
      Black Hole Astrophysics with VLBI 2022
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] ブラックホール近傍のプラズマ降着流・噴出流のダイナミクスと観測的特徴2022

    • Author(s)
      川島 朋尚
    • Organizer
      「自然科学における階層と全体」シンポジウム
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] ブラックホール降着流・相対論的ジェットの多波長輻射特性と時間変動2022

    • Author(s)
      川島 朋尚, 大須賀 健, 髙橋 博之, 人見 拓也
    • Organizer
      ブラックホールジェット・降着円盤・円盤風研究会 2022
    • Related Report
      2021 Research-status Report
  • [Presentation] 3次元一般相対論的磁気流体降着流からの 高エネルギー・ニュートリノ放射2022

    • Author(s)
      川島朋尚, 浅野勝晃
    • Organizer
      日本天文学会2022年春季年会
    • Related Report
      2021 Research-status Report
  • [Presentation] 歳差運動するブラックホール降着流と相対論的ジェットの放射特性2022

    • Author(s)
      川島 朋尚, 大須賀 健, 高橋 博之, 人見 拓也
    • Organizer
      日本天文学会2022年春季年会
    • Related Report
      2021 Research-status Report
  • [Presentation] General relativistic radiative transfer in accretion flows and jets: Probing black hole spacetime and plasma dynamics2021

    • Author(s)
      Kawashima Tomohisa
    • Organizer
      The 30th International Toki Conference on Plasma and Fusion Research
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] General relativistic, multi-wavelength and multi-messenger study on black hole accretion flows and outflows2021

    • Author(s)
      Kawashima Tomohisa, Asano Katsuaki, Ohsuga Ken, Takahashi Hiroyuki R
    • Organizer
      TeVPA 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 一般相対論的輻射輸送計算で探るブラックホール降着流・ジェットの観測的特徴:現状と今後の展望2021

    • Author(s)
      川島 朋尚
    • Organizer
      超巨大ブラックホール研究会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 厳密な時間依存型の多波長・一般相対論的輻射輸送計算で探るブラックホールシャドウおよびスペクトルの時間変動2021

    • Author(s)
      川島 朋尚, 大須賀 健, 髙橋 博之
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Research-status Report
  • [Presentation] 一般相対論的重力場における3次元粒子加速・ ニュートリノ輻射輸送コード 『ν-RAIKOU』 の開発2021

    • Author(s)
      川島 朋尚, 浅野 勝晃
    • Organizer
      日本天文学会2021年秋季年会
    • Related Report
      2021 Research-status Report
  • [Presentation] 多波長・マルチメッセンジャー・ブラックホール天文学:ブラックホールシャドウから高エネルギーニュートリノまで2021

    • Author(s)
      川島 朋尚, 浅野 勝晃, 大須賀 健, 高橋 博之
    • Organizer
      高エネルギー現象で探る宇宙の多様性
    • Related Report
      2021 Research-status Report
  • [Presentation] 一般相対論的磁気流体場における多波長輻射・ニュートリノ輸送計算2021

    • Author(s)
      川島 朋尚, 浅野 勝晃, 大須賀 健, 高橋 博之
    • Organizer
      高エネルギー宇宙物理学研究会2021
    • Related Report
      2021 Research-status Report
  • [Presentation] 3次元一般相対論的磁気流体降着流からの高エネルギーニュートリノ放射2021

    • Author(s)
      川島 朋尚, 浅野 勝晃
    • Organizer
      第34回理論懇シンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] A general-relativistic, multi-wavelength study of accretion flows and relativistic jets2021

    • Author(s)
      Tomohisa Kawashima, Ken Ohsuga, and Hiroyuki R. Takahashi
    • Organizer
      Black Hole Astrophysics with VLBI: Multi-Wavelength and Multi-Messenger Era
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] A possible appearance of M87 jet bases with future EHT observations2021

    • Author(s)
      Tomohisa Kawashima, Kenji Toma, Motoki Kino, Kazunori Akiyama, Masanori Nakamura, and Kotaro Moriyama
    • Organizer
      Science at the Horizon: The Next-Generation EHT2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] ブラックホール時空構造と降着流・噴出流ダイナミクス:次世代EHT および電波からX線・γ線までの多波長研究へ2020

    • Author(s)
      川島 朋尚
    • Organizer
      日本天文学会秋季年会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Event Horizon Telescope 時代のブラックホール天文学: 輻射輸送・磁気流体・プラズマ微視的過程研究の現状と将来展望2020

    • Author(s)
      川島 朋尚
    • Organizer
      第37回プラズマ・核融合学会年会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] EHT時代のブラックホール天文学:多波長輻射輸送計算を中心に2020

    • Author(s)
      川島 朋尚
    • Organizer
      国立天文台 CfCA ユーザーズミーティング
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Multiwavelength study of BH shadow, relativistic jet, and accretion flow via general relativistic radiative transfer2020

    • Author(s)
      川島朋尚
    • Organizer
      Active Galactic Nucleus Jets in the Event Horizon Telescope Era
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 多波長の一般相対論的輻射輸送計算:ブラックホール・シャドウと電波からX線・ガンマ線までの輻射スペクトル2020

    • Author(s)
      川島朋尚、大須賀健、高橋博之
    • Organizer
      日本天文学会春季年会
    • Related Report
      2019 Research-status Report
  • [Presentation] M87ジェット根元の局所的な電子陽電子対プラズマ注入領域からの放射はEHTで観測されたリング・イメージを再現するのか?2020

    • Author(s)
      川島朋尚、當真賢二、紀基樹、秋山和徳、中村雅徳、森山小太郎
    • Organizer
      日本天文学会春季年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Probing mass and spin of black holes via general relativistic radiative transfer in accretion flows and outflows2019

    • Author(s)
      川島朋尚
    • Organizer
      APPC2019 (14th Asia-Pacific Physics Conference)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Probing signature of black hole spin in M87 shadow in flaring state2019

    • Author(s)
      川島朋尚、紀基樹、秋山和徳
    • Organizer
      A Century of Astrophysical Jets: Observation, Theory, and Future Prospects
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 多波長の一般相対論的輻射輸送コードRAIKOUで探るブラックホール降着流・噴出流および時空構造2019

    • Author(s)
      川島朋尚
    • Organizer
      第32回理論懇シンポジウム
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] フレア状態のM87における三日月状シャドウ:2020年代のEHTに向けた新しいブラックホール・スピン測定法2019

    • Author(s)
      川島朋尚、紀基樹、秋山和徳
    • Organizer
      日本天文学会秋季年会
    • Related Report
      2019 Research-status Report
  • [Presentation] ブラックホール・スピンが超臨界降着流の輻射スペクトルに与える影響2019

    • Author(s)
      川島朋尚、大須賀健、高橋博之
    • Organizer
      日本天文学会秋季年会
    • Related Report
      2019 Research-status Report
  • [Presentation] 一般相対論的輻射輸送コード来光(RAIKOU)で探るブラックホール2019

    • Author(s)
      川島朋尚
    • Organizer
      超巨大ブラックホール研究推進連絡会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] PIC simulations of Mushroom instability in relativistic jets2019

    • Author(s)
      川島朋尚
    • Organizer
      US-Japan JIFT workshop on multiscale simulations in plasma physics
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ブラックホール・中性子星への超臨界降着流の輻射スペクトル計算2019

    • Author(s)
      川島朋尚
    • Organizer
      高感度・広帯域X線観測で探るブラックホール降着現象の物理
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 超臨界降着流を伴うブラックホール・中性子星の輻射スペクトルの質量降着率依存性2019

    • Author(s)
      川島朋尚、大須賀健、高橋博之
    • Organizer
      日本天文学会2019年春季年会
    • Related Report
      2018 Research-status Report
  • [Presentation] 一般相対論的輻射輸送コードの開発およびブラックホール・中性子星の超臨界降着流研究への適用2019

    • Author(s)
      川島朋尚、大須賀健、高橋博之
    • Organizer
      素粒子・原子核・宇宙 「京からポスト京に向けて」シンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] Numerical simulations of super-critical accretion flows onto BHs and NSs with application to ULXs2018

    • Author(s)
      川島朋尚
    • Organizer
      Slim accretion disks workshop
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] PIC simulations of Mushroom instability inducing magnetic reconnection in relativistic jets2018

    • Author(s)
      川島朋尚
    • Organizer
      MR2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Super-Eddington accretion onto neutron stars and black holes2018

    • Author(s)
      川島朋尚
    • Organizer
      TeVPA2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Supercritical Accretion Flows in ULXs2018

    • Author(s)
      川島朋尚
    • Organizer
      Time for accretion
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 相対論的ジェットにおけるマッシュルーム不安定性のPICシミュレーション2018

    • Author(s)
      川島朋尚
    • Organizer
      プラズマシミュレータシンポジウム2018
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Radiation hydrodynamic simulations of super-critical accretion coloumns onto neutron stars2018

    • Author(s)
      川島朋尚、大須賀健、嶺重慎、小川拓未
    • Organizer
      Ultra-luminous X-Ray Pulsars
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] On a spin signature in black hole shadow of M872018

    • Author(s)
      川島朋尚、紀基樹
    • Organizer
      The power of Faraday tomography
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 一般相対論的輻射輸送計算で探る超臨界降着ブラックホール・中性子星の輻射スペクトルの差異とその起源2018

    • Author(s)
      川島朋尚、大須賀健、高橋博之
    • Organizer
      日本天文学会2018年秋季年会
    • Related Report
      2018 Research-status Report
  • [Remarks] 初撮影から1年後のM87ブラックホールの姿

    • URL

      https://www.icrr.u-tokyo.ac.jp/news/14656/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 歳差運動するM87ジェットの噴出口~巨大ブラックホールの「自転」を示す新たな証拠~

    • URL

      https://www.icrr.u-tokyo.ac.jp/news/14122/

    • Related Report
      2023 Annual Research Report
  • [Remarks] M87巨大ブラックホールを取り巻く降着円盤とジェットの同時撮影に初めて成功

    • URL

      https://www.icrr.u-tokyo.ac.jp/news/13485/

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
  • [Remarks] 天の川銀河中心のブラックホールの撮影に初めて成功

    • URL

      https://www.icrr.u-tokyo.ac.jp/news/11795/

    • Related Report
      2022 Research-status Report
  • [Remarks] 天の川銀河中心の巨大ブラックホール天体「いて座A*」の構造

    • URL

      https://www.icrr.u-tokyo.ac.jp/news/11336/

    • Related Report
      2021 Research-status Report
  • [Remarks]

    • URL

      http://www.icrr.u-tokyo.ac.jp/news/10260/

    • Related Report
      2020 Research-status Report
  • [Remarks]

    • URL

      http://www.icrr.u-tokyo.ac.jp/news/10263/

    • Related Report
      2020 Research-status Report
  • [Remarks] 史上初、ブラックホールの撮影に成功!

    • URL

      https://www.miz.nao.ac.jp/eht-j/c/pr/pr20190410

    • Related Report
      2018 Research-status Report
  • [Remarks] 地球規模の望遠鏡とスーパーコンピュータで,ブラックホールの素顔にせまる

    • URL

      http://www.cfca.nao.ac.jp/pr/20190410

    • Related Report
      2018 Research-status Report
  • [Remarks] プレスリリース:史上初、ブラックホールの撮影に成功

    • URL

      https://www.jicfus.jp/jp/190410pressrelease/

    • Related Report
      2018 Research-status Report
  • [Remarks] 史上初、ブラックホールの撮影に成功

    • URL

      https://www.nao.ac.jp/news/science/2019/20190410-eht.html

    • Related Report
      2018 Research-status Report
  • [Funded Workshop] Black Hole Astrophysics with VLBI 20232023

    • Related Report
      2022 Research-status Report

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Published: 2018-04-23   Modified: 2025-01-30  

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