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Study of driving mechanism of black hole jets by general relativistic radiative transfer and VLBI observations

Research Project

Project/Area Number 18K03656
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
Research InstitutionKogakuin University

Principal Investigator

Kino Motoki  工学院大学, 工学部, 講師 (70531234)

Co-Investigator(Kenkyū-buntansha) 川島 朋尚  国立天文台, 天文シミュレーションプロジェクト, 特任助教 (90750464)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsブラックホール / 一般相対論 / プラズマ / ジェット / 活動銀河核 / VLBI / 磁場 / 電波観測
Outline of Final Research Achievements

In this study, we performed general relativistic radiation transport calculations for radiation from a simplified black hole jet model, aiming to establish a theoretical method to put a limit on the black hole spin, which is a key physical quantity for driving space jets. We found that when the black hole spin is fast, the dragging effect of the inertial system in Kerr space-time causes an offset between the center of the photon ring and the center of the innermost stable circular orbital ring of the rotating disk, and a dark crescent structure is generated between the two rings. We simulated the theoretical image assuming the next generation EHT including space VLBI, and showed the possibility of detecting the dark crescent.

Academic Significance and Societal Importance of the Research Achievements

私たちイベントホライズンテレスコープ国際コラボレーションは、M87ブラックホールシャドウの電波VLBI観測に成功し、人類が初めて目にするブラックホールシャドウの画像とその科学成果を示す論文を発表した。このM87ブラックホールシャドウの画像は、専門家非専門家を問わず世界中の人々の宇宙やブラックホールに関する関心を大いに高めた。本研究は、まさにこのM87ブラックホールシャドウとそれを縁取る光子リングの成り立ちと、それに深く関連する宇宙ジェットの駆動メカニズムの謎を明らかにすることを目指したものであり、その学術的意義、社会的意義はどちらも極めて高いと言える。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (79 results)

All 2021 2020 2019 2018 Other

All Int'l Joint Research (18 results) Journal Article (43 results) (of which Int'l Joint Research: 41 results,  Peer Reviewed: 43 results,  Open Access: 16 results) Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results) Remarks (12 results) Funded Workshop (2 results)

  • [Int'l Joint Research] Perimeter Institute(カナダ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] MIT, Haystack Observatory(米国)

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

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 韓国天文研究院 (KASI)(韓国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] マックス・プランク研究所 (MPIfR)(ドイツ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research]

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

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] MIT, Haystack Observatory(米国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] 上海天文台 (SHAO)(中国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] 韓国天文研究院 (KASI)(韓国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] マックスプランク研究所 (MPIfR)(ドイツ)

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

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

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] MIT, Haystack observatory(米国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] SHAO(中国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] KASI(韓国)

    • Related Report
      2018 Research-status Report
  • [Int'l Joint Research] MPIfR(ドイツ)

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

    • Related Report
      2018 Research-status Report
  • [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] 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 Annual Research Report
    • Peer Reviewed / 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] 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] 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] 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
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Constraints on the Circumnuclear Disk through Free-Free Absorption in the Nucleus of 3C 84 with KaVA and KVN at 43 and 86 GHz2020

    • Author(s)
      Wajima, Kiyoaki; Kino, Motoki; Kawakatu, Nozomu
    • Journal Title

      The Astrophysical Journal

      Volume: 895 Issue: 1 Pages: 35-35

    • DOI

      10.3847/1538-4357/ab88a0

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [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 Annual Research 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 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] Herschel SPIRE Discovery of Far-infrared Excess Synchrotron Emission from the West Hot Spot of the Radio Galaxy Pictor A2020

    • Author(s)
      Isobe Naoki、Sunada Yuji、Kino Motoki、Koyama Shoko、Tashiro Makoto、Nagai Hiroshi、Pearson Chris
    • Journal Title

      The Astrophysical Journal

      Volume: 899 Issue: 1 Pages: 17-17

    • DOI

      10.3847/1538-4357/ab9d1c

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The radio-loud narrow-line Seyfert 1 galaxy 1H 0323+342 in a galaxy merger2020

    • Author(s)
      Doi, Akihiro; Kino, Motoki; Kawakatu, Nozomu; Hada, Kazuhiro
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 496 Issue: 2 Pages: 1757-1765

    • DOI

      10.1093/mnras/staa1525

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [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] Interferometric Monitoring of Gamma-Ray Bright AGNs: OJ 2872020

    • Author(s)
      Lee Jee Won、Lee Sang-Sung、Algaba Juan-Carlos、Hodgson Jeffrey、Kim Jae-Young、Park Jongho、Kino Motoki、Kim Dae-Won、Kang Sincheol、Yoo Sungmin、Kim Sang Hyun、Gurwell Mark
    • Journal Title

      The Astrophysical Journal

      Volume: 902 Issue: 2 Pages: 104-104

    • DOI

      10.3847/1538-4357/abb4e5

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / 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 Annual Research Report
    • Peer Reviewed / 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 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
      2019 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
      2019 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
      2019 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
      2019 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
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ejection of Double Knots from the Radio Core of PKS 1510?089 during the Strong Gamma-Ray Flares in 20152019

    • Author(s)
      Park Jongho、Lee Sang-Sung、Kim Jae-Young、Hodgson Jeffrey A.、Trippe Sascha、Kim Dae-Won、Algaba Juan-Carlos、Kino Motoki、Zhao Guang-Yao、Lee Jee Won、Gurwell Mark A.
    • Journal Title

      The Astrophysical Journal

      Volume: 877 Issue: 2 Pages: 106-106

    • DOI

      10.3847/1538-4357/ab1b27

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Black Hole Spin Signature in the Black Hole Shadow of M87 in the Flaring State2019

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

      The Astrophysical Journal

      Volume: 878 Issue: 1 Pages: 27-27

    • DOI

      10.3847/1538-4357/ab19c0

    • Related Report
      2019 Research-status 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 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Radio jet structures at ?100?parsec and larger scales of the γ-ray-emitting narrow-line Seyfert 1 galaxy PMN J0948+00222019

    • Author(s)
      Doi Akihiro、Nakahara Satomi、Nakamura Masanori、Kino Motoki、Kawakatu Nozomu、Nagai Hiroshi
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 487 Issue: 1 Pages: 640-649

    • DOI

      10.1093/mnras/stz1290

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / 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] The ALMA Discovery of the Rotating Disk and Fast Outflow of Cold Molecular Gas in NGC 12752019

    • Author(s)
      Nagai H.、Onishi K.、Kawakatu N.、Fujita Y.、Kino M.、Fukazawa Y.、Lim J.、Forman W.、Vrtilek J.、Nakanishi K.、Noda H.、Asada K.、Wajima K.、Ohyama Y.、David L.、Daikuhara K.
    • Journal Title

      The Astrophysical Journal

      Volume: 883 Issue: 2 Pages: 193-193

    • DOI

      10.3847/1538-4357/ab3e6e

    • Related Report
      2019 Research-status 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 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Exploring the Morphology and Origins of the 4C 38.41 Jet2019

    • Author(s)
      Algaba J. C.、Rani B.、Lee S. S.、Kino M.、Park Jongho、Kim Jae-Young
    • Journal Title

      The Astrophysical Journal

      Volume: 886 Issue: 2 Pages: 85-85

    • DOI

      10.3847/1538-4357/ab4b45

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [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 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Source-Frequency Phase-Referencing Observation of AGNS with KAVA Using Simultaneous Dual-Frequency Receiving2019

    • Author(s)
      Zhao, Guang-Yao; Jung, Taehyun; Sohn, Bong Won; Kino, Motoki et al.
    • Journal Title

      Journal of the Korean Astronomical Society

      Volume: 52 Pages: 23-30

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Faraday Rotation in the Jet of M87 inside the Bondi Radius: Indication of Winds from Hot Accretion Flows Confining the Relativistic Jet2019

    • Author(s)
      Park Jongho、Hada Kazuhiro、Kino Motoki、Nakamura Masanori、Ro Hyunwook、Trippe Sascha
    • Journal Title

      The Astrophysical Journal

      Volume: 871 Issue: 2 Pages: 257-257

    • DOI

      10.3847/1538-4357/aaf9a9

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Size, Shape, and Scattering of Sagittarius A* at 86 GHz: First VLBI with ALMA2019

    • Author(s)
      Issaoun S.、Johnson M. D.、Blackburn L. et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 871 Issue: 1 Pages: 30-30

    • DOI

      10.3847/1538-4357/aaf732

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Parabolic Jets from the Spinning Black Hole in M872018

    • Author(s)
      Nakamura Masanori、Asada Keiichi、Hada Kazuhiro、Pu Hung-Yi、Noble Scott、Tseng Chihyin、Toma Kenji、Kino Motoki et al.
    • Journal Title

      The Astrophysical Journal

      Volume: 868 Issue: 2 Pages: 146-146

    • DOI

      10.3847/1538-4357/aaeb2d

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fast-spinning Black Holes Inferred from Symmetrically Limb-brightened Radio Jets2018

    • Author(s)
      Takahashi Kazuya、Toma Kenji、Kino Motoki、Nakamura Masanori、Hada Kazuhiro
    • Journal Title

      The Astrophysical Journal

      Volume: 868 Issue: 2 Pages: 82-82

    • DOI

      10.3847/1538-4357/aae832

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] VERA monitoring of the radio jet 3C?84 in the period of 2007?2013: Detection of non-linear motion2018

    • Author(s)
      Hiura Koichiro、Nagai Hiroshi、Kino Motoki、Niinuma Kotaro、Sorai Kazuo、Chida Hikaru、Akiyama Kazunori、D’Ammando Filippo、Giovannini Gabriele、Giroletti Marcello、Hada Kazuhiro、Honma Mareki、Koyama Shoko、Orienti Monica、Orosz Gabor、Sawada-Satoh Satoko
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 70 Issue: 5

    • DOI

      10.1093/pasj/psy078

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Exploring the nature of the 2016 γ-ray emission in the blazar 1749+0962018

    • Author(s)
      Kim Dae-Won、Trippe Sascha、Lee Sang-Sung、Kim Jae-Young、Algaba Juan-Carlos、Hodgson Jeffrey、Park Jongho、Kino Motoki、Zhao Guang-Yao、Wajima Kiyoaki、Lee Jee Won、Kang Sincheol
    • Journal Title

      Monthly Notices of the Royal Astronomical Society

      Volume: 480 Issue: 2 Pages: 2324-2333

    • DOI

      10.1093/mnras/sty1993

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Scattering and Intrinsic Structure of Sagittarius A* at Radio Wavelengths2018

    • Author(s)
      Johnson Michael D.、Narayan Ramesh、Psaltis Dimitrios、Blackburn Lindy、Kovalev Yuri Y.、Gwinn Carl R.、Zhao Guang-Yao、Bower Geoffrey C.、Moran James M.、Kino Motoki、Kramer Michael、Akiyama Kazunori、Dexter Jason、Broderick Avery E.、Sironi Lorenzo
    • Journal Title

      The Astrophysical Journal

      Volume: 865 Issue: 2 Pages: 104-104

    • DOI

      10.3847/1538-4357/aadcff

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Evidence of Jet?Clump Interaction: A Flip of the Radio Jet Head of 3C 842018

    • Author(s)
      Kino M.、Wajima K.、Kawakatu N.、Nagai H.、Orienti M.、Giovannini G.、Hada K.、Niinuma K.、Giroletti M.
    • Journal Title

      The Astrophysical Journal

      Volume: 864 Issue: 2 Pages: 118-118

    • DOI

      10.3847/1538-4357/aad6e3

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Revealing the Nature of Blazar Radio Cores through Multifrequency Polarization Observations with the Korean VLBI Network2018

    • Author(s)
      Park Jongho、Kam Minchul、Trippe Sascha、Kang Sincheol、Byun Do-Young、Kim Dae-Won、Algaba Juan-Carlos、Lee Sang-Sung、Zhao Guang-Yao、Kino Motoki、Shin Naeun、Hada Kazuhiro、Lee Taeseok、Oh Junghwan、Hodgson Jeffrey A.、Sohn Bong Won
    • Journal Title

      The Astrophysical Journal

      Volume: 860 Issue: 2 Pages: 112-112

    • DOI

      10.3847/1538-4357/aac490

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Exploring the Variability of the Flat-spectrum Radio Source 1633+382. II. Physical Properties2018

    • Author(s)
      Algaba Juan-Carlos、Lee Sang-Sung、Rani Bindu、Kim Dae-Won、Kino Motoki、Hodgson Jeffrey、Zhao Guang-Yao、Byun Do-Young、Gurwell Mark、Kang Sin-Cheol、Kim Jae-Young、Kim Jeong-Sook、Kim Soon-Wook、Park Jong-Ho、Trippe Sascha、Wajima Kiyoaki
    • Journal Title

      The Astrophysical Journal

      Volume: 859 Issue: 2 Pages: 128-128

    • DOI

      10.3847/1538-4357/aac2e7

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A wide and collimated radio jet in 3C84 on the scale of a few hundred gravitational radii2018

    • Author(s)
      Giovannini, G., 他計25名(M. Honma 14番目)
    • Journal Title

      Nature Astronomy

      Volume: in press Issue: 6 Pages: 472-477

    • DOI

      10.1038/s41550-018-0431-2

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Recollimation Shock in a Stationary Jet Feature with Limb-brightening in the Gamma-Ray-emitting Narrow-line Seyfert 1 Galaxy 1H 0323+3422018

    • Author(s)
      Doi Akihiro、Hada Kazuhiro、Kino Motoki、Wajima Kiyoaki、Nakahara Satomi
    • Journal Title

      The Astrophysical Journal

      Volume: 857 Issue: 1 Pages: L6-L6

    • DOI

      10.3847/2041-8213/aabae2

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] M87 ジェット速度場データから探るジェット磁気圏の回転角速度と磁場強度2020

    • Author(s)
      紀基樹
    • Organizer
      日本天文学会2020年秋季年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 日韓合同VLBI観測網で探るM87ジェット速度場のプロファイル計測2019

    • Author(s)
      紀基樹
    • Organizer
      日本天文学会
    • Related Report
      2019 Research-status Report
  • [Presentation] AGN Science working group overview2019

    • Author(s)
      紀基樹
    • Organizer
      12th East Asian VLBI workshop 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On the angular velocity of magnetic field lines in M872019

    • Author(s)
      紀基樹
    • Organizer
      BZ77研究会2019
    • Related Report
      2019 Research-status Report
    • Invited
  • [Remarks] 揺れ動くM87巨大ブラックホールのシャドウ

    • URL

      https://www.miz.nao.ac.jp/eht-j/c/pr/pr20200923

    • Related Report
      2020 Annual Research Report
  • [Remarks] Magnetic Fields at the Edge of M87’s Black Hole

    • URL

      https://eventhorizontelescope.org/blog/astronomers-image-magnetic-fields-edge-m87s-black-hole

    • Related Report
      2020 Annual Research Report
  • [Remarks] Something is Lurking in the Heart of Quasar 3C 279

    • URL

      https://eventhorizontelescope.org/blog/something-is-lurking-in-the-heart-of-quasar-3c-279

    • Related Report
      2020 Annual Research Report
  • [Remarks] Motoki KINO's web site

    • URL

      https://sites.google.com/view/motoki-kino/home

    • Related Report
      2020 Annual Research Report
  • [Remarks] 紀先生が中学2、3年生・高校1、2年生に、ブラックホールシャドウに関する講義を実施

    • URL

      https://www.js.kogakuin.ac.jp/news/2019070302.html

    • Related Report
      2019 Research-status Report
  • [Remarks] 信州大学フレッシュキャンパスセミナー

    • URL

      https://www.shinshu-u.ac.jp/faculty/general/event/2019/07/8992.html

    • Related Report
      2019 Research-status Report
  • [Remarks] 日比谷カレッジ「人類が初めて見た銀河中心の巨大ブラックホール」

    • URL

      https://www.library.chiyoda.tokyo.jp/information/20191002-post_215/

    • Related Report
      2019 Research-status Report
  • [Remarks] 紀基樹客員研究員が参画した研究が「2019 BREAKTHROUGH OF THE YEAR」に選出

    • URL

      https://www.kogakuin.ac.jp/news/2019/122512.html

    • Related Report
      2019 Research-status Report
  • [Remarks] 史上初、ブラックホールの撮影に成功 ― 楕円銀河M87に潜む巨大ブラックホールに迫る

    • URL

      https://www.nao.ac.jp/news/sp/20190410-eht/article.html

    • Related Report
      2018 Research-status Report
  • [Remarks] 史上初!工学院大学 紀基樹 客員研究員らの国際研究チームが “ブラックホール”の撮影に成功

    • URL

      https://www.kogakuin.ac.jp/archive/fbb28u000000boav-att/20190412.pdf

    • Related Report
      2018 Research-status Report
  • [Remarks] 史上初!工学院大学 紀基樹客員研究員らの国際研究チームが “ブラックホール”の撮影に成功

    • URL

      https://www.atpress.ne.jp/news/181759

    • Related Report
      2018 Research-status Report
  • [Remarks] Astronomers Capture First Image of a Black Hole

    • URL

      https://eventhorizontelescope.org

    • Related Report
      2018 Research-status Report
  • [Funded Workshop] Black Hole Astrophysics with VLBI: Multi-Wavelength and Multi-Messenger Era2021

    • Related Report
      2020 Annual Research Report
  • [Funded Workshop] Active Galactic Nucleus Jets in the Event Horizon Telescope Era2020

    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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