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Observational study on the Massive Binary Black Holes at milli-and submilliwavelengths

Research Project

Project/Area Number 21340044
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Astronomy
Research InstitutionNational Astronomical Observatory of Japan

Principal Investigator

IGUCHI Satoru  国立天文台, 電波研究部, 准教授 (10342627)

Co-Investigator(Renkei-kenkyūsha) OKUDA Takeshi  名古屋大学, 大学院・理学研究科, 助教 (10455199)
SUGIMOTO Masahiro  国立天文台, 電波研究部, 助教 (50399276)
ASAYAMA Shinichiro  国立天文台, 電波研究部, 助教 (60390621)
Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥18,980,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥4,380,000)
Fiscal Year 2011: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2010: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2009: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Keywords電波天文学 / サブミリ波 / バイナリーブラックホール / 巨大銀河形成 / 精密モニター / バイナリブラックホール / 3bit 4GHz帯域アナログデジタル変換器
Research Abstract

By our high-precision monitoring observations at millimeter wavelengths, we successfully detected the periodic variation a periodic flux variation from the center of a giant galaxy. This and our past observations provided possible evidence that binary black holes exist in the center of giant galaxies. The black hole merger is one of the most spectacular natural phenomena in the universe and our observational results show that the black hole collisions may have important implications for the formation of a supermassive black hole in the evolution process.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (32 results)

All 2012 2011 2010 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (5 results) Remarks (22 results)

  • [Journal Article] A search for a molecular torus in NGC 42612012

    • Author(s)
      T. Okuda, S. Iguchi, K. Kohno
    • Journal Title

      Astrophysical Journal

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] A search for a molecular torus in NGC 42612012

    • Author(s)
      Takeshi Okuda, Satoru Iguchi, Kotaro Kohno
    • Journal Title

      Astrophysical Journal

      Volume: (in press)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Proper Motion of the Sub-Parsec Scale Jet in the Radio Galaxy 3C 66B2011

    • Author(s)
      H. Sudou, S. Iguchi
    • Journal Title

      Astronomical Journal

      Volume: vol.142 Issue: 2 Pages: 49-63

    • DOI

      10.1088/0004-6256/142/2/49

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] A Very Close Binary Black Hole in a Giant Elliptical Galaxy 3C 66B and its Black Hole Merger2010

    • Author(s)
      S. Iguchi, T. Okuda and H. Sudou
    • Journal Title

      Astrophysical Journal

      Volume: vol.724 Issue: 2 Pages: L166-L170

    • DOI

      10.1088/2041-8205/724/2/l166

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] A Very Close Binary Black Hole in a Giant Elliptical Galaxy 3C 66B and its Black Hole Merger2010

    • Author(s)
      Satoru Iguchi, Takeshi Okuda, Hiroshi Sudou
    • Journal Title

      Astrophysical Journal Letters

      Volume: 724 Pages: 166-170

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] A Very Close Binary Black Hole in a Giant Elliptical Galaxy 3C 66B and its Black Hole Merger2012

    • Author(s)
      S. Iguchi
    • Organizer
      219th meeting of the American Astronomical Society
    • Place of Presentation
      Austin, TX, USA
    • Year and Date
      2012-01-08
    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Presentation] A Very Close Binary Black Hole in a Giant Elliptical Galaxy 3C 66B and its Black Hole Merger2011

    • Author(s)
      Satoru IGUCHI
    • Organizer
      Gravitational Wave Astrophysics, Binary Supermassive Black Holes, and Galaxy Mergers
    • Place of Presentation
      Lijiang, Yunnan, China
    • Year and Date
      2011-08-04
    • Related Report
      2011 Annual Research Report
  • [Presentation] 衝突する直前のバイナリブラックホールの検出2011

    • Author(s)
      井口聖、奥田武志、須藤広志
    • Organizer
      2011年日本天文学会春季年会 予稿集A21a
    • Place of Presentation
      筑波大学(東日本大震災により中止。但し、発表は成立)
    • Year and Date
      2011-03-19
    • Related Report
      2010 Annual Research Report
  • [Presentation] Very Close Binary Black Hole in a Giant Elliptical Galaxy 3C 66B and its Black Hole Merger2011

    • Author(s)
      S. Iguchi
    • Organizer
      Gravitational Wave Astrophysics, Binary Supermassive Black Holes, and Galaxy Mergers
    • Place of Presentation
      Lijiang, Yunnan, China
    • Related Report
      2011 Final Research Report
  • [Presentation] 衝突する直前のバイナリブラックホールの検出2011

    • Author(s)
      井口聖、奥田武志、須藤広志
    • Organizer
      2011年日本天文学会春季年会
    • Place of Presentation
      筑波大学
    • Related Report
      2011 Final Research Report
  • [Remarks]

    • Related Report
      2011 Final Research Report
  • [Remarks] とくダネ!「衝突寸前のブラックホール発見」2010年12月1日(水) 08 : 00-フジテレビ

    • Related Report
      2011 Final Research Report
  • [Remarks] NHKニュースおはよう日本「巨大ブラックホール500年ほどで衝突か」2010年12月1日(水) 04 : 30-と05 : 30-NHK総合他NHKラジオ等

    • Related Report
      2011 Final Research Report
  • [Remarks] 「衝突寸前の2つの巨大ブラックホール」2012/1/1パリティ2012/01特集:物理学、この1年

    • Related Report
      2011 Final Research Report
  • [Remarks] 「衝突寸前の巨大ブラックホール」2011/09/15ニュートン・ムック「Basic Science Illustratedブラックホール」

    • Related Report
      2011 Final Research Report
  • [Remarks] 「衝突する直前の二つの巨大ブラックホール」2011/06/15ニュートン別冊「ブラックホールとタイムトラベル」

    • Related Report
      2011 Final Research Report
  • [Remarks] 「衝突直前のブラックホール」2010/12/25日経サイエンス2011年2月号「NEWS SCAN国内フラッシュ」

    • Related Report
      2011 Final Research Report
  • [Remarks] 「衝突間近の2つのブラックホール」2010/12/10科学新聞

    • Related Report
      2011 Final Research Report
  • [Remarks] 「二つのブラックホール500年後に衝突」2010/12/7毎日新聞朝刊

    • Related Report
      2011 Final Research Report
  • [Remarks] 「超巨大ブラックホールが誕生寸前?わずか500年後」2010/12/2 AstroArts(Web)

    • Related Report
      2011 Final Research Report
  • [Remarks] 「二つのブラックホール衝突直前の観測に成功」2010/12/1しんぶん赤旗

    • Related Report
      2011 Final Research Report
  • [Remarks] 「ブラックホール、あと500年で衝突か」2010/12/1朝日新聞夕刊

    • Related Report
      2011 Final Research Report
  • [Remarks] 「衝突直前! 2つのブラックホール」2010/12/1産経新聞朝刊

    • Related Report
      2011 Final Research Report
  • [Remarks] 「ぶつかる!ブラックホール」2010/12/1読売新聞朝刊

    • Related Report
      2011 Final Research Report
  • [Remarks] 「2つのブラックホール接近500年後衝突」2010/12/1日本経済新聞朝刊

    • Related Report
      2011 Final Research Report
  • [Remarks] 「2つのブラックホール接近観測500年後に衝突へ」2010/12/1日本経済新聞Web刊(Web)

    • Related Report
      2011 Final Research Report
  • [Remarks] 「急接近!衝突直前のブラックホール、初観測」2010/12/1 YOMIURI ONLINE(Web)

    • Related Report
      2011 Final Research Report
  • [Remarks] 「衝突直前!? 2つのブラックホール発見」2010/12/1 MSN産経ニュース(Web版)

    • Related Report
      2011 Final Research Report
  • [Remarks] 「ブラックホール、あと500年で衝突「超接近」発見」2010/12/1 asahi. com(Web)

    • Related Report
      2011 Final Research Report
  • [Remarks] 「衝突直前ブラックホール初観測」2010/12/1 NHKニュース(Web版)

    • Related Report
      2011 Final Research Report
  • [Remarks] 「衝突直前のブラックホールを発見500年後、ペアが合体か」2010/12/1共同通信(Web版掲載22社:共同47ニュース、北日本新聞、山形新聞、福島民報、新潟日報社、下野新聞、千葉日報、茨城新聞、東京新聞、神奈川新聞、山梨日日新聞、静岡新聞、中日新聞、福井新聞、神戸新聞、中国新聞、愛媛新聞、高知新聞、四国新聞、西日本新聞、長崎新聞、大分合同新聞)

    • Related Report
      2011 Final Research Report
  • [Remarks]

    • URL

      http://alma.mtk.nao.ac.jp/~iguchi/press_release/index.html

    • Related Report
      2010 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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