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Search for Cluster Gas Motion with X-ray Spectroscopy

Research Project

Project/Area Number 19740112
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Astronomy
Research InstitutionJapan Aerospace Exploration Agency

Principal Investigator

OTA Naonmi  Japan Aerospace Exploration Agency, 理学部第一部, 助教 (40391891)

Project Period (FY) 2007 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥3,080,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2007: ¥1,000,000 (Direct Cost: ¥1,000,000)
KeywordsX線γ線天文学 / 宇宙物理 / X線天文学 / 銀河団 / 高温プラズマ / X線分光 / ガスバルク運動 / 非熱的現象 / 宇宙構造形成
Research Abstract

To reveal the dynamical evolution of the largest objects in the Universe called "clusters of galaxies", an X-ray spectroscopy with the Suzaku satellite has been performed. Since the clusters of galaxies contain a large amount of hot gas, it is possible to measure the motion and temperature of the gas in detail. In particular, we have confirmed, for the first time, the presence of the hottest gas (with temperature of 0.3 billion degree) in the Universe inside the RXJ1347 cluster with the X-ray observations.

Report

(4 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (30 results)

All 2009 2008 2007 Other

All Journal Article (18 results) (of which Peer Reviewed: 18 results) Presentation (6 results) Remarks (6 results)

  • [Journal Article] X-ray Diagnostics of Thermal Conductions of the Hot Plasmas in the Centaurus Cluster2009

    • Author(s)
      I. Takahashi, M. Kawaharada, K. Makishima, K. Matsushita, Y. Fukazawa, Y. Ikebe, T. Kitaguchi, M. Kokubun, K. Nakazawa, S. Okuyama, N. Ota, T. Tamura
    • Journal Title

      ApJ 701

      Pages: 377-395

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Suzaku measurement of Abell 2204's intracluster gas temperature profile out to 1800 kpc2009

    • Author(s)
      T.H. Reiprich, D.S. Hudson, Y. -Y. Zhang, Y. Ishisaki, A. Hoshino, T. Ohashi, N. Ota, Y. Fujita
    • Journal Title

      A&A 501

      Pages: 899-905

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Constraints on the Intracluster Dust Emission in the Coma Cluster of Galaxies2009

    • Author(s)
      T. Kitayama, Y. Ito, Y. Okada, H. Kaneda, H. Takahashi, N. Ota, T. Onaka, Y. Tajiri, H. Nagata, K. Yamada
    • Journal Title

      ApJ 695

      Pages: 1191-1198

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Constraints on Non-Thermal X-ray Emission from the On-Going Merger Cluster Abell 3376 with Suzaku2009

    • Author(s)
      N. Kawano, Y. Fukazawa, S. Nishino, K. Nakazawa, T. Kitaguchi, K. Makishima, T. Takahashi, M. Kokubun, N. Ota, T. Ohashi, N. Isobe, P. Henry, A. Hornschemeier
    • Journal Title

      PASJ 61

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Constraints on the Intracluster Dust Emission in the Coma Cluster of Galaxies2009

    • Author(s)
      T.Kitayama, et al.
    • Journal Title

      The Astrophysical Journal 695

      Pages: 1191-1198

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Suzaku measurement of Abell 2204's intracluster gas temperature profile out to 1800kpc2009

    • Author(s)
      T.H.Reiprich, et al.
    • Journal Title

      Astronomy and Astrophysics 501

      Pages: 899-905

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] X-ray Diagnostics of Thermal Conditions of the Hot Plasmas in the Centaurus Cluster2009

    • Author(s)
      I.Takahashi, et al.
    • Journal Title

      The Astrophysical Journal 701

      Pages: 377-395

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Constraints on Non-Thermal X-ray Emission from the On-Going Merger Cluster Abell 3376 with Suzaku2009

    • Author(s)
      N.Kawano, et al.
    • Journal Title

      Publications of the Astronomical Society of Japan 61

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A bright, dust-obscured, millimeter-selected galaxy beyond the Bullet Cluster (1E0657-56)2008

    • Author(s)
      G. W. Wilson, I. Aretxaga, D. Hughes, H. Ezawa, J. E. Austermann, S. Doyle, I. Hernandez-Curiel, R. Kawabe, T. Kitayama, K. Kohno, A. Kuboi, H. Matsuo, P. D. Mauskopf, Y. Murakoshi, A. Montana, P. Natarajan, T. Oshima, N. Ota, T. Perera, J. Rand, K. S. Scott, K. Tanaka, T. Tsuboi
    • Journal Title

      MNRAS 390

      Pages: 1061-1070

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Suzaku broad-band spectroscopy of RX J1347. 5-1145: constraints on the extremely hot gas and non-thermal emission2008

    • Author(s)
      N. Ota, K. Murase, T. Kitayama, E. Komatasu, M. Hattori, H. Matsuo, T. Oshima, Y. Suto, K. Yoshikawa
    • Journal Title

      A&A 491

      Pages: 363-377

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] LX-T relation and thermal evolution of galaxy clusters2008

    • Author(s)
      N. Ota, T. Kiatayama, K. Masai, K. Mitsuda
    • Journal Title

      The Chinese Journal of Astronomy and Astrophysics 8

      Pages: 84-92

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Suzaku Observations of HCG62: Temperature, Abundance, and Extended Hard X-ray Emission Profiles2008

    • Author(s)
      T. Tokoi, K. Sato, Y. Ishisaki, T. Ohashi, N.Y. Yamasaki, K. Nakazawa, K. Matsushita, Y. Fukazawa, A. Hoshino, T. Tamura, C. Egawa, N. Kawao, N. Ota, N. Isobe, M. Kawaharada, H. Awaki, J.P. Hughes
    • Journal Title

      PASJ 60

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] Suzaku broad-band spectroscopy of RX J1347.5-1145: constraints on the extremely hot gas and non-thermal emission2008

    • Author(s)
      N.Ota, et al.
    • Journal Title

      Astronomy & Astrophysics 491

      Pages: 363-377

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A briglit, dust-obscured, millimeter-selected galaxy beyond the Bullet Cluster (1E0657-56)2008

    • Author(s)
      G.W.Wilson, et al.
    • Journal Title

      Monthly Notices of the Royal Astronomical Society 390

      Pages: 1061-1070

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Suzaku Observation of HCG62:Temperature,Abundance,and Extended HardX-ray Emission profiles2008

    • Author(s)
      T.Tokoi, et. al.
    • Journal Title

      Publications of the Astronomical Society of Japan 60

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] X-ray Study of Temperature and Abundance Profiles of the Cluster of Galaxies Abell 1060 with Suzaku2007

    • Author(s)
      K. Sato, N.Y. Yamasaki, M. Ishida, Y. Ishisaki, T. Ohashi, H. Kawahara, T. Kitaguchi, M. Kawaharada, M. Kokubun, K. Makishima, N. Ota, K. Nakazawa, T. Tamura, K. Matsushita, N. Kawano, Y. Fukzawa, J.P. Hughes
    • Journal Title

      PASJ 59

      Pages: 299-317

    • Related Report
      2009 Final Research Report
    • Peer Reviewed
  • [Journal Article] X-ray Study of Temperature and Abundance Profiles of the Cluster of Galaxies Abell 1060 withSuzaku2007

    • Author(s)
      K.Sato, et. al.
    • Journal Title

      Publications of the Astronomical Society of Japan 59

      Pages: 299-317

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Lx-T relation and thermal evolution of galaxy clusters

    • Author(s)
      N.Ota, et. al.
    • Journal Title

      The Chinese Journal of Astronomy and Astrophysics 印刷中

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Extremely hot gas in the most X-ray luminous cluster RXJ13472009

    • Author(s)
      N. Ota
    • Organizer
      The Energetic Cosmos: from Suzaku to Astro-H
    • Place of Presentation
      北海道・グランドパーク小樽
    • Year and Date
      2009-07-01
    • Related Report
      2009 Final Research Report
  • [Presentation] Extremely hot gas in the most X-ray luminous cluster RXJ13472009

    • Author(s)
      N.Ota
    • Organizer
      The Energetic Cosmos : from Suzaku to Astro-H
    • Place of Presentation
      グランドパーク小樽(北海道)
    • Year and Date
      2009-07-01
    • Related Report
      2009 Annual Research Report
  • [Presentation] Velocity diagnostics in distant galaxy clusters with IXO2008

    • Author(s)
      N. Ota
    • Organizer
      Exploring the Hot Universe with IXO
    • Place of Presentation
      ドイツ・マックスプランク研究所
    • Year and Date
      2008-09-18
    • Related Report
      2009 Final Research Report
  • [Presentation] Velocity diagnostics in distant galaxy clusters with IXO2008

    • Author(s)
      N.Ota
    • Organizer
      Exploring the Hot Universe with IXO
    • Place of Presentation
      ドイツ・マックスブランク研究所
    • Year and Date
      2008-09-18
    • Related Report
      2008 Annual Research Report
  • [Presentation] LX-T relation and thermal evolution of galaxy clusters2007

    • Author(s)
      N. Ota
    • Organizer
      The Frascati Workshop 2007
    • Place of Presentation
      イタリア・ブルカノ島
    • Year and Date
      2007-05-28
    • Related Report
      2009 Final Research Report
  • [Presentation] Lx-T relation and thermal evolution of galaxy clusters2007

    • Author(s)
      N.Ota
    • Organizer
      The Frascati Wbrkshop 2007
    • Place of Presentation
      イタリア・ヴルカノ島
    • Year and Date
      2007-05-28
    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://www.rs.kagu.tus.ac.jp/ota/

    • Related Report
      2009 Final Research Report
  • [Remarks]

    • URL

      http://www.isas.jaxa.jp/j/forefront/2009/oota/index.shtml

    • Related Report
      2009 Final Research Report
  • [Remarks]

    • URL

      http://www.astro.isas.jaxa.jp/suzaku/flash/2008/1028/

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://www.astro.isas.jaxa.jp/~ota/

    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://www.astro.isas.jaxa.jp/~mitsuda/labo

    • Related Report
      2007 Annual Research Report
  • [Remarks]

    • URL

      http://www.astro.isas.jaxa.jp/~ota/

    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2016-04-21  

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