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Probing magnetic fields of supermassive black-hole jets with next-generation international VLBI networks

Research Project

Project/Area Number 19H01943
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 16010:Astronomy-related
Research InstitutionNational Astronomical Observatory of Japan

Principal Investigator

Hada Kazuhiro  国立天文台, 水沢VLBI観測所, 助教 (60724458)

Co-Investigator(Kenkyū-buntansha) 笹田 真人  広島大学, 宇宙科学センター, 特任助教 (10725352)
田崎 文得  国立天文台, 水沢VLBI観測所, 特別客員研究員 (10800609)
萩原 喜昭  東洋大学, 文学部, 教授 (60399300)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2019: ¥14,690,000 (Direct Cost: ¥11,300,000、Indirect Cost: ¥3,390,000)
Keywords電波天文学 / VLBI / ブラックホール / ジェット / 活動銀河核
Outline of Research at the Start

巨大ブラックホールから噴出する相対論的ジェットの生成・収束・加速機構の解明は現代天文学における究極的課題の1つである。本研究では230GHz帯国際VLBI観測網(Event Horizon Telescope)によるジェット生成領域の高解像度観測と、22/43GHz帯東アジアVLBI観測網による「収束・加速領域」の偏波観測を組み合わせることで、世界に先駆けて生成・加速・収束領域における「磁力線構造」の解明を試みる。そのために今回は石垣・小笠原局の両偏波受信システムを整備する。そして得られた磁力線構造を我々の先行研究結果と結びつけ、現在最有力とされる理論「磁場駆動型モデル」の妥当性を確かめる。

Outline of Final Research Achievements

Elucidation of the generation mechanism of powerful jets ejected from supermassive black holes is one of the most important questions in astronomy. In this research, we focused on the polarization emitted from the gas around the black hole and investigated the magnetic field structure to address the above mystery. To this end, we implemented dual-polarization receiving system for the Japanese radio telescope network VERA, and together with other radio telescopes in East Asia, we observed polarized emission from nearby supermassive black holes and jets using the East Asian VLBI Network. We obtained a clue for the presence of strong magnetic fields for some targets. The results suggest that magnetic fields play a key role in jet generation mechanisms from supermassive black holes.

Academic Significance and Societal Importance of the Research Achievements

銀河の中心に存在する巨大ブラックホールは宇宙で最も謎に満ちた天体であり、その姿や性質の解明には極めて高い視力を持った電波望遠鏡による観測が重要である。本研究ではブラックホール周辺のガスに付随する磁場構造を詳しく観測することで、ジェットの発生メカニズムに新たな知見をもたらすなど、宇宙最大の謎の1つに迫る学術的意義の大きな研究成果を得た。またブラックホールは日常生活とは無縁だが、子供からお年寄りまで関心の高いテーマであることから、人類の知のフロンティアを開拓したという意味でも社会的意義のある成果となった。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (71 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (9 results) Journal Article (28 results) (of which Int'l Joint Research: 26 results,  Peer Reviewed: 28 results,  Open Access: 15 results) Presentation (30 results) (of which Int'l Joint Research: 13 results,  Invited: 23 results) Remarks (4 results)

  • [Int'l Joint Research] ハーバード大学(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] 韓国天文研究院/延世大学/ソウル大学(韓国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] 上海天文台/新疆天文台(中国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] ハーバード大学(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 韓国天文研究院/ソウル大学/延世大学(韓国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 上海天文台/新疆天文台(中国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 上海天文台/新疆天文台(中国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] 韓国天文研究院/ソウル大学/延世大学(韓国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] ハーバード大学(米国)

    • Related Report
      2019 Annual Research Report
  • [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 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] X-ray spectral components of the blazar and binary black hole candidate OJ 287 (2005-2020)2021

    • Author(s)
      Komossa S、Grupe D、Parker M L、Gomez J L、Valtonen M J、Nowak M A、Jorstad S G、Haggard D、Chandra S、Ciprini S、Dey L、Gopakumar A、Hada K、Markoff S、Neilsen J
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 504 Issue: 4 Pages: 5575-5587

    • DOI

      10.1093/mnras/stab1223

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Testing the magnetic flux paradigm for AGN radio loudness with a radio-intermediate quasar2021

    • Author(s)
      Chamani W.、Savolainen T.、Hada K.、Xu M. H.
    • Journal Title

      Astronomy and Astrophysics

      Volume: 652 Pages: A14-A14

    • DOI

      10.1051/0004-6361/202140676

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Morphological Transition of the Compact Radio Lobe in 3C 84 via the Strong Jet-Cloud Collision2021

    • Author(s)
      Kino Motoki、Niinuma Kotaro、Kawakatu Nozomu、Nagai Hiroshi、Giovannini Gabriele、Orienti Monica、Wajima Kiyoaki、D’Ammando Filippo、Hada Kazuhiro、Giroletti Marcello、Gurwell Mark
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 920 Issue: 1 Pages: L24-L24

    • DOI

      10.3847/2041-8213/ac24fa

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] East Asian VLBI Network observations of active galactic nuclei jets: imaging with KaVA+Tianma+Nanshan2021

    • Author(s)
      Cui Yu-Zhu、Hada Kazuhiro、他75名
    • Journal Title

      Research in Astronomy and Astrophysics

      Volume: 21 Issue: 8 Pages: 205-205

    • DOI

      10.1088/1674-4527/21/8/205

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Revised View of the Linear Polarization in the Subparsec Core of M87 at 7 mm2021

    • Author(s)
      Park Jongho、Asada Keiichi、Nakamura Masanori、Kino Motoki、Pu Hung-Yi、Hada Kazuhiro、Kravchenko Evgeniya V.、Giroletti Marcello
    • Journal Title

      The Astrophysical Journal

      Volume: 922 Issue: 2 Pages: 180-180

    • DOI

      10.3847/1538-4357/ac26bf

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Multiwavelength study of the gravitationally lensed blazar QSO B0218+357 between 2016 and 20202021

    • Author(s)
      MAGIC Collaboration, Hada Kazuhiro, 他17名
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 510 Issue: 2 Pages: 2344-2362

    • DOI

      10.1093/mnras/stab3454

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [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
      2020 Annual Research Report
    • Peer Reviewed / Open Access / 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 Annual Research 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 Annual Research 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 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Jet Collimation and Acceleration in the Giant Radio Galaxy NGC 3152021

    • Author(s)
      Park Jongho、Hada Kazuhiro、Nakamura Masanori、Asada Keiichi、Zhao Guangyao、Kino Motoki
    • Journal Title

      The Astrophysical Journal

      Volume: 909 Issue: 1 Pages: 76-76

    • DOI

      10.3847/1538-4357/abd6ee

    • Related Report
      2020 Annual Research 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 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Millimeter-VLBI Detection and Imaging of the Gravitationally Lensed γ-Ray Blazar JVAS B0218+3572020

    • Author(s)
      Hada Kazuhiro、Niinuma Kotaro、Sitarek Julian、Spingola Cristiana、Hirano Ayumi
    • Journal Title

      The Astrophysical Journal

      Volume: 901 Issue: 1 Pages: 2-2

    • DOI

      10.3847/1538-4357/abaab1

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / 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 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Monitoring of the radio galaxy M87 during a low-emission state from 2012 to 2015 with MAGIC2020

    • Author(s)
      MAGIC Collaboration, et al.
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 492 Issue: 4 Pages: 5354-5365

    • DOI

      10.1093/mnras/staa014

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Two-sided Jet Structures of NGC 1052 at Scales from 300 to 4 × 107 Schwarzschild Radii2020

    • Author(s)
      Nakahara, Satomi; Doi, Akihiro; Murata, Yasuhiro; Nakamura, Masanori; Hada, Kazuhiro; Asada, Keiichi; Sawada-Satoh, Satoko; Kameno, Seiji
    • Journal Title

      The Astronomical Journal

      Volume: 159 Issue: 1 Pages: 14-14

    • DOI

      10.3847/1538-3881/ab465b

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Relativistic Jets from AGN Viewed at Highest Angular Resolution2019

    • Author(s)
      Hada Kazuhiro
    • Journal Title

      Galaxies

      Volume: 8 Issue: 1 Pages: 1-1

    • DOI

      10.3390/galaxies8010001

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Kinematics of the M87 Jet in the Collimation Zone: Gradual Acceleration and Velocity Stratification2019

    • Author(s)
      Park Jongho、 Hada Kazuhiro、Kino Motoki et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 887 Issue: 2 Pages: 147-147

    • DOI

      10.3847/1538-4357/ab5584

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] M87 black hole mass and spin estimate through the position of the jet boundary shape break2019

    • Author(s)
      Nokhrina E E、Gurvits L I、Beskin V S、Nakamura M、Asada K、Hada K
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 489 Issue: 1 Pages: 1197-1205

    • DOI

      10.1093/mnras/stz2116

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Stable Radio Core of the Blazar Mrk 501 during High-energy Active State in 20122019

    • Author(s)
      Koyama Shoko、Kino Motoki、Doi Akihiro、Niinuma Kotaro、Giroletti Marcello、Paneque David、Akiyama Kazunori、Giovannini Gabriele、Zhao Guang-Yao、Ros Eduardo、Kataoka Jun、Orienti Monica、Hada Kazuhiro、Nagai Hiroshi、Isobe Naoki、Kobayashi Hideyuki、Honma Mareki、Lico Rocco
    • Journal Title

      The Astrophysical Journal

      Volume: 884 Issue: 2 Pages: 132-132

    • DOI

      10.3847/1538-4357/ab4260

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Jet kinematics of the quasar 4C+21.35 from observations with the KaVA very long baseline interferometry array2019

    • Author(s)
      Lee Taeseok、Trippe Sascha、Kino Motoki et al.
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 486 Issue: 2 Pages: 2412-2421

    • DOI

      10.1093/mnras/stz970

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Cygnus A Jet: Parabolic Streamlines up to Kiloparsec Scales2019

    • Author(s)
      Nakahara Satomi、Doi Akihiro、Murata Yasuhiro、Nakamura Masanori、Hada Kazuhiro、Asada Keiichi
    • Journal Title

      The Astrophysical Journal

      Volume: 878 Issue: 1 Pages: 61-61

    • DOI

      10.3847/1538-4357/ab1b0e

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [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
      2019 Annual Research 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
      2019 Annual Research 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
      2019 Annual Research 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
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [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
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] VERA広帯域両偏波観測の性能評価報告2022

    • Author(s)
      秦和弘
    • Organizer
      日本天文学会2022春季年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Event Horizon Telescope Observations of Supermassive Black Holes2022

    • Author(s)
      Kazuhiro Hada
    • Organizer
      East Asian ALMA Science Workshop 2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 巨大ブラックホールので電波観測最前線2022

    • Author(s)
      秦和弘
    • Organizer
      28th ICEPP Symposium
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 巨大ブラックホールの超高解像度電波観測2022

    • Author(s)
      秦和弘
    • Organizer
      ブラックホールジェット・円盤風研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] High-resolution view of collimaiton and acceleration regions of nearby AGN jets2021

    • Author(s)
      Kazuhiro Hada
    • Organizer
      Extragalactic jets at all scales (Jets2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] AGN Observations with Next-generation Radio Interferometers2021

    • Author(s)
      秦和弘
    • Organizer
      Linking the science of large interferometers in the 2030s
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Munti-wavelength Observations of M872021

    • Author(s)
      K. Hada
    • Organizer
      Black Hole Astrophysics with VLBI: Multi-Wavelength and Multi-Messenger Era
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] ミリ波VLBIによる巨大ブラックホール観測2021

    • Author(s)
      秦和弘
    • Organizer
      (サブ)ミリ波単一鏡の革新で挑む、天文学の未解決問題
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] JCMT-VLBI超高解像度ミリ波観測で探る超巨大ブラックホール2021

    • Author(s)
      秦和弘
    • Organizer
      ワークショップ 北半球で口径最大焦点面装置とっても充実サブミリ波単一鏡 JCMTを使ってみよう
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] MWL updates on M87 and AGN: Low-energy (radio/mm) perspective2020

    • Author(s)
      K. Hada
    • Organizer
      EHT Collaboration Meeting 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Event Horizon Telescopeによるブレーザー3C279の20マイクロ秒角スケールイメージング2020

    • Author(s)
      秦和弘
    • Organizer
      日本天文学会2020 秋季年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] EHTによるM87ブラックホール ・シャドウの撮影2020

    • Author(s)
      田崎文得
    • Organizer
      宇宙電波懇談会シンポジウム
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] ブラックホール画像化2020

    • Author(s)
      田崎文得
    • Organizer
      2020年度画像電子学会年次大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Collimation, acceleration and recollimation shock in the jet of gamma-ray emitting NLS1 galaxy 1H0323+3422020

    • Author(s)
      Hada, K.
    • Organizer
      Active Galactic Nucleus Jets in the Event Horizon Telescope Era
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] イベントホライズンテレスコープによるブラックホールシャドウ初撮影2020

    • Author(s)
      秦和弘
    • Organizer
      光産業技術シンポジウム
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Overview of the first EHT results2020

    • Author(s)
      Tazaki, F., Honma, M.
    • Organizer
      Active Galactic Nucleus Jets in the Event Horizon Telescope Era
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Results from recent EATING VLBI Observations for M872019

    • Author(s)
      Hada, K.
    • Organizer
      EATING VLBI Workshop 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] M87 First Event Horizon Telescope Results and The East Asian VLBI Network2019

    • Author(s)
      Hada, K.
    • Organizer
      1st mini-workshop on compact objects and multi-wave emission, Urumqi
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Expanding AGN Studies with EAVN and TNRT2019

    • Author(s)
      Hada, K.
    • Organizer
      NARIT-NAOJ Collaboration Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Introduction of VERA and AGN Science with EAVN2019

    • Author(s)
      Hada, K.
    • Organizer
      The 1st Malaysian VLBI Workshop
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Overview of Multi-wavelength Working Group Status2019

    • Author(s)
      Hada, K.
    • Organizer
      EHT Collaboration Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Event Horizon Telescopeによるブラックホール観測の初期成果と国際協力2019

    • Author(s)
      秦和弘
    • Organizer
      国際天文学連合100年記念シンポジウム
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] イベント・ホライズン・テレスコープによるブラックホールシャドウ初撮影2019

    • Author(s)
      秦和弘
    • Organizer
      日本天文教育普及研究会総会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] センチ波によるAGN観測と東アジアVLBI2019

    • Author(s)
      秦和弘
    • Organizer
      SKA Japanシンポジウム 2019
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] M87-EHT-2017キャンペーンに同期した東アジアVLBIネットワーク観測で迫る、ブラックホール-ジェットコネクション2019

    • Author(s)
      秦和弘、崔玉竹、紀基樹、本間希樹、Bong Won Sohn 、EAVN AGN Science Working Group
    • Organizer
      日本天文学会2019秋
    • Related Report
      2019 Annual Research Report
  • [Presentation] ブラックホール観測と画像化 史上初の成果に至るまで2019

    • Author(s)
      田崎文得
    • Organizer
      画像電子学会第290回研究会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] EHT による M87*の観測成果 IV:画像化方法の評価とリング構造の抽出2019

    • Author(s)
      田崎文得、秋山和徳、森山小太郎、小山翔子、笹田真人、池田思朗、永井洋、本間希樹、秦和弘、沖野大貴、浅田圭一、水野陽介、EHT Collaboration
    • Organizer
      日本天文学会2019秋
    • Related Report
      2019 Annual Research Report
  • [Presentation] Imaging the black hole shadow of M872019

    • Author(s)
      Tazaki, F.
    • Organizer
      EAVN Workshop 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] First Ever Image of a Black Hole2019

    • Author(s)
      Tazaki, F.
    • Organizer
      UK-Japan FoS Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] EHTによるM87*の観測成果VI:ブラックホールパラメータの推定2019

    • Author(s)
      笹田真人, 浅田圭一, 秋山和徳, 森山小太郎, 水野陽介,本間希樹,池田思朗,EHT Collaboration
    • Organizer
      日本天文学会2019秋
    • Related Report
      2019 Annual Research Report
  • [Remarks] 多波長同時観測でさぐるM87巨大ブラックホールの活動性と周辺構造:地上・宇宙の望遠鏡が一致団結

    • URL

      https://www.nao.ac.jp/news/science/2021/20210414-eht.html

    • Related Report
      2020 Annual Research Report
  • [Remarks] イベント・ホライズン・テレスコープ・プロジェクトがM87ブラックホールごく近傍の磁場の画像化に成功

    • URL

      https://www.miz.nao.ac.jp/eht-j/c/pr/pr20210324

    • Related Report
      2020 Annual Research Report
  • [Remarks] クエーサー 3C 279 の中心で輝くジェットを EHT が高解像度で観測

    • URL

      https://www.miz.nao.ac.jp/eht-j/c/pr/pr20200407

    • Related Report
      2020 Annual Research 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
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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