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Coevolution and Formation of Supermassive Black Hole and circumnuclear disk by Multi-scale Theoretical Model

Research Project

Project/Area Number 16K17670
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Astronomy
Research InstitutionKure National College of Technology

Principal Investigator

Kawakatsu Nozomu  呉工業高等専門学校, 自然科学系分野, 准教授 (30450183)

Research Collaborator Wada Keiichi  
Kohno Kotaro  
Izumi Takuma  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords超巨大ブラックホール / 銀河 / 共進化 / 星形成 / 理論天文学 / 活動銀河中心核 / 活動銀河核 / 超大質量ブラックホール
Outline of Final Research Achievements

To understand the evolution and formation of supermassive black holes (SMBHs), it is crucial to link mass accretion processes from a galactic scale with those from an accretion disk in the vicinity of a central BH. To this aim, we have constructed a novel evolutionary model of Active galactic nuclei (AGNs) and circumnuclear disk, considering the gas fueling from host galaxies. Comparing our model with nearby observations of Seyfert galaxies, we found that CNDs likely play an important role in fuelingblack holes, whereas > kpc scale gas does not. Moreover, we predictd the obscured fraction of AGNs by taking account of the anisotropic radiation pressure from AGNs.

Academic Significance and Societal Importance of the Research Achievements

近傍銀河中心の観測との比較により得られた結果は、銀河中心50パーセクスケールの銀河核ガス円盤の重力不安定性が、超巨大ブラックホールへのガス降着量を左右することを示唆するものである。また、本研究で明らかになった銀河核ガス円盤の幾何学構造のパラメータ依存性は、銀河中心領域の物理状態の理解に留まらず、超巨大ブラックホール形成史に関わる統計量(光度関数や質量関数など)の解釈にも大きな影響を与えるものである。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (19 results)

All 2018 2017 2016

All Journal Article (6 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 6 results,  Acknowledgement Compliant: 2 results) Presentation (13 results) (of which Int'l Joint Research: 2 results,  Invited: 6 results)

  • [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 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fossil Shell in 3C 84 as TeV γ-Ray Emitter and Cosmic-Ray Accelerator2017

    • Author(s)
      Kino, M.; Ito, H.; Wajima, K.; Kawakatu, N.; Nagai, H.; Itoh, R.
    • Journal Title

      The Astrophysical Journal

      Volume: 843 Issue: 2 Pages: 82-94

    • DOI

      10.3847/1538-4357/aa7336

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] On the Disappearance of a Cold Molecular Torus around the Low-luminosity Active Galactic Nucleus of NGC 10972017

    • Author(s)
      Izumi T.、Kohno K.、Fathi K.、Hatziminaoglou E.、Davies R. I.、Martin S.、Matsushita S.、Schinnerer E.、Espada D.、Aalto S.、Onishi K.、Turner J. L.、Imanishi M.、Nakanishi K.、Meier D. S.、Wada K.、Kawakatu N.、Nakajima T.
    • Journal Title

      The Astrophysical Journal Letters

      Volume: 845 Issue: 1 Pages: 5-12

    • DOI

      10.3847/2041-8213/aa808f

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] An Optically Faint Quasar Survey at z=5 in the CFHTLS Wide Field: Estimates of the Black Hole Masses and Eddington Ratios2017

    • Author(s)
      Ikeda, H.; Nagao, T.; Matsuoka, K.; Kawakatu, N.; Kajisawa, M.; Akiyama, M.; Miyaji, T.; Morokuma, T.
    • Journal Title

      The Astrophysical Journal

      Volume: 846 Issue: 1 Pages: 57-71

    • DOI

      10.3847/1538-4357/aa83ae

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] AGN jet power, formation of X-ray cavities, and FR I/II dichotomy in galaxy clusters2016

    • Author(s)
      Fujita, Yutaka, Kawakatu, Nozomu, Shlosman, Isaac
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 68 Issue: 2 Pages: 26-46

    • DOI

      10.1093/pasj/psw012

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Do Circumnuclear Dense Gas Disks Drive the Mass Accretion onto Supermassive Black Holes?2016

    • Author(s)
      T. Izumi, N. Kawakatu, and K. Kohno
    • Journal Title

      The Astrophysical Journal

      Volume: 827 Issue: 1 Pages: 81-96

    • DOI

      10.3847/0004-637x/827/1/81

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Direct evidence of a few to tens parsec torus in 3C842018

    • Author(s)
      川勝望
    • Organizer
      IAU General Assembly 2018 FM#3 on Radio galaxies
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] AGN-SB関係と遮蔽構造2018

    • Author(s)
      川勝 望
    • Organizer
      すばる望遠鏡 Hyper Suprime-CamとALMAで挑むクェーサー研究
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 電波銀河3C84の中心1パーセクの遮蔽構造の非一様性2018

    • Author(s)
      川勝望,紀基樹,輪島清昭,新沼浩太郎, 和田桂一,澤田-佐藤聡子
    • Organizer
      2018日本天文学会 秋年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 超新星爆発駆動モデルによる活動銀河核の遮蔽構造2017

    • Author(s)
      川勝望,和田桂一
    • Organizer
      日本天文学会秋季年会
    • Related Report
      2017 Research-status Report
  • [Presentation] AGNジェットとSMBH近傍の高密度ガス雲との関係 (Physical relationship between AGN jets and high density gas clouds near SMBHs)2017

    • Author(s)
      川勝 望
    • Organizer
      国立天文台研究集会:「星形成と銀河構造における磁場の役割」
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 南極30mテラヘルツ望遠鏡で探る超巨大ブラックホールの成長過程2017

    • Author(s)
      川勝 望
    • Organizer
      南極30m級テラヘルツ望遠鏡計画 -高赤方偏移銀河・AGNの観測- 検討会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 超新星爆発駆動モデルによる活動銀河核の遮蔽構造2017

    • Author(s)
      川勝 望
    • Organizer
      鹿児島大学理学部談話会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Obscuring dusty circumnuclear disk driven by starburst feedbacks2017

    • Author(s)
      Nozomu Kawakatu
    • Organizer
      大阪大学 理学部 宇宙進化グループ談話会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] ブラックホール研究の最先端2017

    • Author(s)
      川勝 望
    • Organizer
      広島の楽しい100人 第19回 広島から「宇宙を見上げる」
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] パーセクスケール電波ローブの非対称性から探る3C84の中心核構造2016

    • Author(s)
      川勝望,紀基樹,輪島清昭, 和田桂一,長尾透
    • Organizer
      日本天文学会2016年秋季年会
    • Place of Presentation
      愛媛大学城北キャンパス(愛媛県松山市)
    • Year and Date
      2016-09-14
    • Related Report
      2016 Research-status Report
  • [Presentation] 日韓共同ミリ波帯VLBI 観測による3C 84 のサブパーセクスケール吸収 円盤の発見2016

    • Author(s)
      輪島清昭, 紀基樹 , 川勝望
    • Organizer
      日本天文学会2016年秋季年会
    • Place of Presentation
      愛媛大学城北キャンパス(愛媛県松山市)
    • Year and Date
      2016-09-14
    • Related Report
      2016 Research-status Report
  • [Presentation] 電波銀河3C84のシェルにおけるガンマ線、宇宙線生成について2016

    • Author(s)
      紀基樹, 伊藤裕貴, 輪島清昭, 川勝望, M. Orienti, 永井洋, 伊藤亮介
    • Organizer
      日本天文学会2016年秋季年会
    • Place of Presentation
      愛媛大学城北キャンパス(愛媛県松山市)
    • Year and Date
      2016-09-14
    • Related Report
      2016 Research-status Report
  • [Presentation] Formation of obscuring flared dusty circumnuclear disk by AGN and starburst feedbacks2016

    • Author(s)
      川勝望, 和田桂一
    • Organizer
      Hiden Monsters: Obscured AGNs and Connections to Galaxy Evolution
    • Place of Presentation
      ダートマス大学(米国)
    • Year and Date
      2016-08-08
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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