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Evolution of the ISM around Supermassive Black Holes

Research Project

Project/Area Number 16H03959
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Astronomy
Research InstitutionKagoshima University

Principal Investigator

Wada Keiichi  鹿児島大学, 理工学域理学系, 教授 (30261358)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2019: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords巨大ブラックホール / 星間ガス / 磁気流体計算 / 輻射輸送計算 / 多波長観測 / 磁気流体シミュレーション / 多次元輻射輸送 / 銀河合体 / 銀河中心 / 理論シミュレーション / 輻射輸送 / 輻射磁気流体 / 活動銀河核 / 活動銀河中心核 / 数値流体 / 銀河中心核 / ブラックホール
Outline of Final Research Achievements

We have theoretically studied the active galactic nucleus (AGN), which consists of a supermassive black hole (SMBHs) at the centre of many galaxies. In particular, we combined the multi-dimensional radiative magnetohydrodynamic calculations and multi-wavelength pseudo-observations. We compared the numerical results with the multi-wavelength observational studies to understand1) the physical origin of the obscuring tori, 2) physics and parameters that determine the structure of the ISM around SMBH, 3) mass accretion processes and the origin of the buried AGN. We have succeeded in developing a theoretical model (radiation-driven fountain model) that explains the observational results of nearby AGNs. These studies are useful to understand the cosmological evolution of quasars and buried AGNs.

Academic Significance and Societal Importance of the Research Achievements

従来の現象論的な「トーラス」モデルと決定的に違うのは、基礎物理過程に立脚した多次元輻射流体計算に基づいて、低光度AGNから大質量ブラックホールを持つ高赤方偏移クェーサーまで統一的に扱える方法論を確立した点、また、輻射輸送計算と組み合わせることで、多波長観測データと直接比較できる、など、多くの可能性と将来性を示し、実際、近傍AGNに関して多波長観測(電波、可視・赤外、X線等)との直接比較に成功した。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (27 results)

All 2020 2019 2018 2017 2016 Other

All Int'l Joint Research (7 results) Journal Article (11 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 11 results,  Acknowledgement Compliant: 1 results) Presentation (9 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results)

  • [Int'l Joint Research] シャルマース工科大学(スウェーデン)

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

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] マックスプランク研究所/ミュンヘン大学(ドイツ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] オンサラ観測所(スウェーデン)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] ジョーンズホプキンス大学(米国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] Swinburne Institute of Technology(オーストラリア)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Leiden University(オランダ)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Mass Accretion toward Black Holes in the Final Phase of Galaxy Mergers2020

    • Author(s)
      Takeru Kawaguchi, Naomichi Yutani, and Keiichi Wada
    • Journal Title

      The Astrophysical Journal

      Volume: 890 Issue: 2 Pages: 125-136

    • DOI

      10.3847/1538-4357/ab655a

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Obscuring Fraction of Active Galactic Nuclei Implied by Supernova and Radiative Feedbacks2020

    • Author(s)
      Kawakatu Nozomu、Wada Keiichi、Ichikawa Kohei
    • Journal Title

      The Astrophysical Journal

      Volume: 889 Issue: 2 Pages: 84-84

    • DOI

      10.3847/1538-4357/ab5f60

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magneto Rotational Instability in Magnetized AGN Tori2018

    • Author(s)
      Kudoh Yuki、Wada Keiichi
    • Journal Title

      Galaxies

      Volume: 6 Issue: 4 Pages: 139-139

    • DOI

      10.3390/galaxies6040139

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Circumnuclear Multiphase Gas in Circinus Galaxy. III. Structure of the Nuclear Ionized Gas2018

    • Author(s)
      Wada Keiichi、Yonekura Kensuke、Nagao Tohru
    • Journal Title

      The Astrophysical Journal

      Volume: 867 Issue: 1 Pages: 49-49

    • DOI

      10.3847/1538-4357/aae204

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Circumnuclear Multiphase Gas in the Circinus Galaxy. II. The Molecular and Atomic Obscuring Structures Revealed with ALMA2018

    • Author(s)
      Izumi, Takuma; Wada, Keiichi; Fukushige, Ryosuke; Hamamura, Sota; Kohno, Kotaro
    • Journal Title

      The Astrophysical Journal

      Volume: 867 Issue: 1 Pages: 48-67

    • DOI

      10.3847/1538-4357/aae20b

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Circumnuclear Multi-phase Gas in the Circinus Galaxy. I. Non-LTE Calculations of CO Lines2018

    • Author(s)
      Wada Keiichi、Fukushige Ryosuke、Izumi Takuma、Tomisaka Kohji
    • Journal Title

      The Astrophysical Journal

      Volume: 852 Issue: 2 Pages: 88-88

    • DOI

      10.3847/1538-4357/aa9e53

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] ALMA Reveals an Inhomogeneous Compact Rotating Dense Molecular Torus at the NGC 1068 Nucleus2018

    • Author(s)
      Imanishi Masatoshi、Nakanishi Kouichiro、Izumi Takuma、Wada Keiichi
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 853 Issue: 2 Pages: L25-L25

    • DOI

      10.3847/2041-8213/aaa8df

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The life cycle of starbursting circumnuclear gas discs2018

    • Author(s)
      Schartmann, M.; Mould, J.; Wada, K.; Burkert, A.; Durr, M.; Behrendt, M.; Davies, R. I.; Burtscher, L.
    • Journal Title

      Monthly Notices of the Royal Astronomical Society,

      Volume: 473 Issue: 1 Pages: 953-968

    • DOI

      10.1093/mnras/stx2381

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Luminous, pc-scale CO 6-5 emission in the obscured nucleus of NGC 13772017

    • Author(s)
      Aalto, S.; Muller, S.; Costagliola, F.; Sakamoto, K.; Gallagher, J. S.; Falstad, N.; K. Henig, S.; Dasyra, K.; Wada, K.; Combes, F.; Garcia-Burillo, S.; Kristensen, L. E.; Martin, S.; van der Werf, P.; Evans, A. S.; Kotilainen, J.
    • Journal Title

      Astronomy & Astrophysics,

      Volume: 608 Pages: A22-A22

    • DOI

      10.1051/0004-6361/201730650

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Multi-phase Nature of a Radiation-driven Fountain with Nuclear Starburst in a Low-mass Active Galactic Nucleus2016

    • Author(s)
      Wada, Keiichi; Schartmann, Marc; Meijerink, Rowin
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 828 Issue: 2 Pages: L19-L19

    • DOI

      10.3847/2041-8205/828/2/l19

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] A precessing molecular jet signaling an obscured, growing supermassive black hole in NGC 1377?2016

    • Author(s)
      Aalto, S.; Costagliola, F.; Muller, S.; Sakamoto, K.; Gallagher, J. S.; Dasyra, K.; Wada, K.; Combes, F.; Garcia-Burillo, S.; Kristensen, L. E.; Martin, S.; van der Werf, P.; Evans, A. S.; Kotilainen, J.
    • Journal Title

      Astronomy & Astrophysics

      Volume: 590 Pages: A73-A73

    • DOI

      10.1051/0004-6361/201527664

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 銀河中心核トーラスにおける輻射圧を考慮した磁気流体数値実験2019

    • Author(s)
      工藤祐己、和田桂一
    • Organizer
      日本天文学会秋季年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Dynamical pictures of tori and the multi-phase ISM2018

    • Author(s)
      Keiichi Wada
    • Organizer
      TORUS 2018 The many faces of the AGN obscuration
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 3D Magnetohydorodynamic Simulations of AGN Torus2018

    • Author(s)
      Yuki Kudoh, Keiichi Wada
    • Organizer
      THE POWER OF FARADAY TOMOGRAPHY --- TOWARDS 3D MAPPING OF COSMIC MAGNETIC FIELDS ---
    • Related Report
      2018 Annual Research Report
  • [Presentation] 大局的3次元磁気流体計算による銀河中心核トーラスの磁気的活動性2018

    • Author(s)
      工藤祐己
    • Organizer
      日本天文学会春季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] AGN輻射噴水モデルII2017

    • Author(s)
      和田桂一
    • Organizer
      日本天文学会秋季年会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Molecular, atomic, and ionized gas in AGN with starburst2017

    • Author(s)
      和田桂一
    • Organizer
      Behind the curtain of dust II: The molecular and multi-wavelength view of activity in ULIRGs
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] AGN輻射駆動噴水モデル:Circinus galaxyでの検証2017

    • Author(s)
      和田桂一
    • Organizer
      日本天文学会春季年会
    • Place of Presentation
      九州大学(福岡県・福岡市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] How can AGNs be obscured with the radiative and starburst feedback2016

    • Author(s)
      和田桂一
    • Organizer
      Hidden Monsters: Obscured AGN and Connections to Galaxy Evolution
    • Place of Presentation
      ハノーバ(USA)
    • Year and Date
      2016-08-08
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multi-phase nature of the radiation-driven fountain with the nuclear starburst2016

    • Author(s)
      和田桂一
    • Organizer
      HSC-AGN workshop
    • Place of Presentation
      東京大学IPMU(千葉県・柏市)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2022-05-20  

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