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Measuring magnetic fields in the vicinity of supermassive black holes through radio and X-ray observations

Research Project

Project/Area Number 19K14772
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 16010:Astronomy-related
Research InstitutionOsaka University (2020-2023)
Institute of Physical and Chemical Research (2019)

Principal Investigator

Inoue Yoshiyuki  大阪大学, 大学院理学研究科, 准教授 (70733989)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords天文学 / 理論天文学 / 活動銀河核 / 電波天文学 / ブラックホール / 高エネルギー天文学 / X線天文学
Outline of Research at the Start

本研究では, 巨大ブラックホール周辺の「磁場」という最も基本的な物理量を理論・観測を連携して決定する. 宇宙史解明において, 宇宙の基本構成要素である巨大ブラックホールの理解は必要不可欠である. しかし, 未だに巨大ブラックホールの周辺物理はよくわかっていない. その理由の一つが周辺磁場がわかっていないことである. そこで, 本研究では理論・観測を連携し, 巨大ブラックホールに付随するコロナからのシンクロトロン放射を捉えることで, 数十シュバルツシルト半径の範囲における「磁場」を世界で初めて測る.

Outline of Final Research Achievements

This study aimed to determine the magnetic fields surrounding supermassive black holes through the integration of theoretical and observational approaches. By synthesizing accretion disk theories with radio and X-ray observations, we endeavored to capture coronal synchrotron radiation. With the support of this research project, we successfully confirm the presence of corona synchrotron radiation in nearby active galactic nuclei through spectral analysis, temporal variations, and observations across various objects. We also achieved breakthroughs in clarifying the connections between these magnetic fields and high-energy emissions such as neutrinos and gamma rays. These findings not only enhance our understanding of the fundamental physical processes governing black holes but also contribute significantly to the fields of astrophysics and cosmology. This research paves the way for future explorations into the enigmatic behaviors of black holes and their influential role in the universe.

Academic Significance and Societal Importance of the Research Achievements

本研究は、巨大ブラックホール周辺の磁気活動を明らかにしてきました。ブラックホールから噴き出す相対論的ジェットやブラックホールへのガス降着といった極限物理現象の背後には磁気活動があります。本研究の成果は今後、これらブラックホールにおける極限物理の解明において重要な役割を果たすと期待されます。また、宇宙線活動との関連も示し、ブラックホール近傍の極限物理状態の理解の一助となる研究となりました。

Report

(6 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
  • Research Products

    (52 results)

All 2024 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (7 results) Journal Article (29 results) (of which Int'l Joint Research: 19 results,  Peer Reviewed: 28 results,  Open Access: 26 results) Presentation (16 results) (of which Int'l Joint Research: 7 results,  Invited: 13 results)

  • [Int'l Joint Research] UCL(英国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] National Tsing Hua University(その他の国・地域(台湾))

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] FAU Erlangen-Nurnberg(ドイツ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Columbia Univ./Northeastern Univ./Barnard College(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Columbia 大学/Northearstern 大学/UCLA(米国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] Columbia 大学/Northearstern 大学/MIT(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] SLAC/コロンビア大学/Northearstern大学(米国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] ALMA Confirmation of Millimeter Time Variability in the Gamma-Ray Detected Seyfert Galaxy GRS 1734-2922024

    • Author(s)
      Michiyama Tomonari、Inoue Yoshiyuki、Doi Akihiro、Yamada Tomoya、Fukazawa Yasushi、Kubo Hidetoshi、Barnier Samuel
    • Journal Title

      The Astrophysical Journal (in press)

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Deciphering Radio Emissions from Accretion Disk Winds in Radio-Quiet Active Galactic Nuclei2024

    • Author(s)
      Yamada Tomoya、Sakai Nobuyuki、Inoue Yoshiyuki、Michiyama Tomonari
    • Journal Title

      The Astrophysical Journal (in press)

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gamma-ray emission in the Seyfert galaxy NGC4151: Investigating the role of jet and coronal activities2023

    • Author(s)
      Inoue Yoshiyuki、Khangulyan Dmitry
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 75 Issue: 6 Pages: L33-L39

    • DOI

      10.1093/pasj/psad072

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The centimeter-to-submillimeter broad-band radio spectrum of the central compact component in a nearby type-II Seyfert galaxy NGC?10682023

    • Author(s)
      Michiyama Tomonari、Inoue Yoshiyuki、Doi Akihiro
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 75 Issue: 5 Pages: 874-882

    • DOI

      10.1093/pasj/psad044

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cosmic Ray Processes in Galactic Ecosystems2023

    • Author(s)
      Owen Ellis R.、Wu Kinwah、Inoue Yoshiyuki、Yang H.-Y. Karen、Mitchell Alison M. W.
    • Journal Title

      Galaxies

      Volume: 11 Issue: 4 Pages: 86-86

    • DOI

      10.3390/galaxies11040086

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] On the Zeeman effect in magnetically arrested disks2023

    • Author(s)
      Inoue Yoshiyuki
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 75 Issue: 3 Pages: L7-L11

    • DOI

      10.1093/pasj/psad017

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Strong lensing of high-energy neutrinos2023

    • Author(s)
      Taak Yoon Chan、Treu Tommaso、Inoue Yoshiyuki、Kusenko Alexander
    • Journal Title

      Physical Review D

      Volume: 107 Issue: 2 Pages: 023011-023011

    • DOI

      10.1103/physrevd.107.023011

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] MeV Gamma-Ray Source Contribution to the Inner Galactic Diffuse Emission2023

    • Author(s)
      Tsuji Naomi、Inoue Yoshiyuki、Yoneda Hiroki、Mukherjee Reshmi、Odaka Hirokazu
    • Journal Title

      The Astrophysical Journal

      Volume: 943 Issue: 1 Pages: 48-48

    • DOI

      10.3847/1538-4357/acab69

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Reconstruction of multiple Compton scattering events in MeV gamma-ray Compton telescopes towards GRAMS: The physics-based probabilistic model2023

    • Author(s)
      Yoneda Hiroki、Odaka Hirokazu、Ichinohe Yuto、Takashima Satoshi、他
    • Journal Title

      Astroparticle Physics

      Volume: 144 Pages: 102765-102765

    • DOI

      10.1016/j.astropartphys.2022.102765

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Impacts of Jets and winds from primordial black holes2022

    • Author(s)
      Takhistov Volodymyr、Lu Philip、Murase Kohta、Inoue Yoshiyuki、Gelmini Graciela B
    • Journal Title

      Monthly Notices of the Royal Astronomical Society: Letters

      Volume: 517 Issue: 1 Pages: L1-L4

    • DOI

      10.1093/mnrasl/slac097

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Spatially resolved study of the SS?433/W?50 west region with Chandra: X-ray structure and spectral variation of non-thermal emission2022

    • Author(s)
      Kayama Kazuho、Tanaka Takaaki、Uchida Hiroyuki、Tsuru Takeshi Go、Sudoh Takahiro、Inoue Yoshiyuki、Khangulyan Dmitry、Tsuji Naomi、Yamamoto Hiroaki
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 74 Issue: 5 Pages: 1143-1156

    • DOI

      10.1093/pasj/psac060

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Event reconstruction of Compton telescopes using a multi-task neural network2022

    • Author(s)
      Takashima Satoshi、Odaka Hirokazu、Yoneda Hiroki、Ichinohe Yuto、Bamba Aya、Aramaki Tsuguo、Inoue Yoshiyuki
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

      Volume: 1038 Pages: 166897-166897

    • DOI

      10.1016/j.nima.2022.166897

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] ALMA Detection of Parsec-scale Blobs at the Head of a Kiloparsec-scale Jet in the Nearby Seyfert Galaxy NGC 10682022

    • Author(s)
      Michiyama, Tomonari; Inoue, Yoshiyuki; Doi, Akihiro; Khangulyan, Dmitry
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 936 Issue: 1 Pages: 1-7

    • DOI

      10.3847/2041-8213/ac8935

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] High-energy Emission Component, Population, and Contribution to the Extragalactic Gamma-Ray Background of Gamma-Ray-emitting Radio Galaxies2022

    • Author(s)
      Fukazawa Yasushi、Matake Hiroto、Kayanoki Taishu、Inoue Yoshiyuki、Finke Justin
    • Journal Title

      The Astrophysical Journal

      Volume: 931 Issue: 2 Pages: 138-138

    • DOI

      10.3847/1538-4357/ac6acb

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Interstellar gas heating by primordial black holes2022

    • Author(s)
      Takhistov Volodymyr、Lu Philip、Gelmini Graciela B.、Hayashi Kohei、Inoue Yoshiyuki、Kusenko Alexander
    • Journal Title

      Journal of Cosmology and Astroparticle Physics

      Volume: 2022 Issue: 03 Pages: 017-017

    • DOI

      10.1088/1475-7516/2022/03/017

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A fundamental plane in X-ray binary activity of external galaxies2021

    • Author(s)
      Inoue, Y., Yabe, K., Ueda, Y.
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 73 Issue: 5 Pages: 1315-1332

    • DOI

      10.1093/pasj/psab077

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Spatial Variations of Magnetic Field along Active Galactic Nuclei Jets on Sub-parsec to Megaparsec Scales2021

    • Author(s)
      Ito Soichiro, Inoue Yoshiyuki, Jun Kataoka
    • Journal Title

      Astrophysical Journal

      Volume: 916 Issue: 2 Pages: 95-95

    • DOI

      10.3847/1538-4357/ac0827

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cross-match between the Latest Swift-BAT and Fermi-LAT Catalogs2021

    • Author(s)
      Tsuji Naomi、Yoneda Hiroki、Inoue Yoshiyuki、Aramaki Tsuguo、Karagiorgi Georgia、Mukherjee Reshmi、Odaka Hirokazu
    • Journal Title

      The Astrophysical Journal

      Volume: 916 Issue: 1 Pages: 28-28

    • DOI

      10.3847/1538-4357/ac0341

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Gamma-ray and Neutrino Signals from Accretion Disk Coronae of Active Galactic Nuclei2021

    • Author(s)
      Yoshiyuki Inoue , Dmitry Khangulyan , Akihiro Doi
    • Journal Title

      GALAXIES

      Volume: 9 Issue: 2 Pages: 36-50

    • DOI

      10.3390/galaxies9020036

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Follow-up observations for IceCube-170922A: Detection of rapid near-infrared variability and intensive monitoring of TXS 0506+0562021

    • Author(s)
      Morokuma Tomoki、Utsumi Yousuke、Ohta Kouji、他36名
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 73 Issue: 1 Pages: 25-43

    • DOI

      10.1093/pasj/psaa110

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Constraining Primordial Black Holes with Dwarf Galaxy Heating2021

    • Author(s)
      Lu Philip、Takhistov Volodymyr、Gelmini Graciela B.、Hayashi Kohei、Inoue Yoshiyuki、Kusenko Alexander
    • Journal Title

      The Astrophysical Journal

      Volume: 908 Issue: 2 Pages: L23-L23

    • DOI

      10.3847/2041-8213/abdcb6

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Origin of Galactic Spurs: New Insight from Radio/X-Ray All-sky Maps2021

    • Author(s)
      Kataoka Jun、Yamamoto Marino、Nakamura Yuki、Ito Soichiro、Sofue Yoshiaki、Inoue Yoshiyuki、Nakamori Takeshi、Totani Tomonori
    • Journal Title

      The Astrophysical Journal

      Volume: 908 Issue: 1 Pages: 14-14

    • DOI

      10.3847/1538-4357/abdb31

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Physical Conditions and Particle Acceleration in the Kiloparsec Jet of Centaurus A2020

    • Author(s)
      Sudoh Takahiro、Khangulyan Dmitry、Inoue Yoshiyuki
    • Journal Title

      The Astrophysical Journal

      Volume: 901 Issue: 2 Pages: L27-L27

    • DOI

      10.3847/2041-8213/abb3fa

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Blazar Radio and Optical Survey (BROS): A Catalog of Blazar Candidates Showing Flat Radio Spectrum and Their Optical Identification in Pan-STARRS1 Surveys2020

    • Author(s)
      Itoh Ryosuke、Utsumi Yousuke、Inoue Yoshiyuki、Ohta Kouji、Doi Akihiro、Morokuma Tomoki、Kawabata Koji S.、Tanaka Yasuyuki T.
    • Journal Title

      The Astrophysical Journal

      Volume: 901 Issue: 1 Pages: 3-3

    • DOI

      10.3847/1538-4357/abab07

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cosmological Evolution of Flat-spectrum Radio Quasars Based on the Swift/BAT 105 Month Catalog and Their Contribution to the Cosmic MeV Gamma-Ray Background Radiation2020

    • Author(s)
      Toda Koyo、Fukazawa Yasushi、Inoue Yoshiyuki
    • Journal Title

      The Astrophysical Journal

      Volume: 896 Issue: 2 Pages: 172-172

    • DOI

      10.3847/1538-4357/ab9113

    • Related Report
      2020 Research-status Report
    • Open Access
  • [Journal Article] On the Origin of High-energy Neutrinos from NGC 1068: The Role of Nonthermal Coronal Activity2020

    • Author(s)
      Inoue, Yoshiyuki; Khangulyan, Dmitry; Doi, Akihiro
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 891 Issue: 2 Pages: L33-L33

    • DOI

      10.3847/2041-8213/ab7661

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multiwavelength Emission from Galactic Jets: The Case of the Microquasar SS4332020

    • Author(s)
      Sudoh Takahiro、Inoue Yoshiyuki、Khangulyan Dmitry
    • Journal Title

      The Astrophysical Journal

      Volume: 889 Issue: 2 Pages: 146-146

    • DOI

      10.3847/1538-4357/ab6442

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] On High-energy Particles in Accretion Disk Coronae of Supermassive Black Holes: Implications for MeV Gamma-rays and High-energy Neutrinos from AGN Cores2019

    • Author(s)
      Inoue Yoshiyuki、Khangulyan Dmitry、Inoue Susumu、Doi Akihiro
    • Journal Title

      The Astrophysical Journal

      Volume: 880 Issue: 1 Pages: 40-40

    • DOI

      10.3847/1538-4357/ab2715

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Inverse Compton Scattering of Starlight in the Kiloparsec-scale Jet in Centaurus A: The Origin of Excess TeV γ-Ray Emission2019

    • Author(s)
      Tanada K.、Kataoka J.、Inoue Y.
    • Journal Title

      The Astrophysical Journal

      Volume: 878 Issue: 2 Pages: 139-139

    • DOI

      10.3847/1538-4357/ab2233

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Science Cases with JEDI - My Personal View -2023

    • Author(s)
      Yoshiyuki Inoue
    • Organizer
      JEDI Meeting
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] ニュートリノ源対応天体のサイエンス2023

    • Author(s)
      Yoshiyuki Inoue
    • Organizer
      JEDI Meeting
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] High-Energy Accretion Phenomena Around Black Holes2023

    • Author(s)
      Yoshiyuki Inoue
    • Organizer
      RESCEU Summer School 2023
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Non-thermal Coronal Activity in Seyfert Galaxies2023

    • Author(s)
      Yoshiyuki Inoue
    • Organizer
      Chiba University Seminar
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Non-thermal Coronal Activity in Nearby AGNs2023

    • Author(s)
      井上芳幸
    • Organizer
      Topical Workshop: NGC 1068 as cosmic laboratory
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Prospects for Observations of Jetted and Unjetted Active Galactic Nuclei with CTA2023

    • Author(s)
      井上芳幸
    • Organizer
      The extreme Universe viewed in very-high-energy gamma rays 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Unjetted AGNs as Neutrino Sources2022

    • Author(s)
      井上芳幸
    • Organizer
      KM3NeT Town Hall Meeting
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Coronal magnetic activity in nearby active supermassive black holes2022

    • Author(s)
      井上芳幸
    • Organizer
      15th Asia Pacific Physics Conference (APPC15)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Unveiling the Coronal Activity in Active Galactic Nuclei with ALMA2022

    • Author(s)
      井上芳幸
    • Organizer
      East Asia ALMA Science Workshop 2022
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 宇宙とブラックホール2021

    • Author(s)
      井上芳幸
    • Organizer
      SSI Workshop
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] セイファートのミリ波超過成分の起源2020

    • Author(s)
      井上芳幸
    • Organizer
      日本天文学会2020年秋季年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Status & Prospect of Gamma-ray Astronomy2020

    • Author(s)
      井上芳幸
    • Organizer
      CRC タウンミーティング
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Future Prospects of MeV Gamma-ray Astronomy2020

    • Author(s)
      井上芳幸
    • Organizer
      Connecting high-energy astroparticle physics for origins of cosmic rays and future perspectives
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Unveiling the coronal magnetic activity of supermassive black holes with ALMA2020

    • Author(s)
      井上芳幸
    • Organizer
      ALMA/45m/ASTE Users Meeting 2020
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Coronal Magnetic Activity in nearby Active Supermassive Black Holes2020

    • Author(s)
      井上芳幸
    • Organizer
      日本天文学会2020年春季年会, 筑波大学
    • Related Report
      2019 Research-status Report
  • [Presentation] Gamma-ray Astrophysics: Phenomenology2019

    • Author(s)
      井上芳幸
    • Organizer
      Gordon Research Conference "New Tools for the Next Generation of Particle Physics and Cosmology"
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2019-04-18   Modified: 2025-01-30  

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