• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Observatinal Study of High Energy Phenomena in the Galactic Center Region

Research Project

Project/Area Number 24740123
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Astronomy
Research InstitutionKyoto University

Principal Investigator

NOBUKAWA Masayoshi  京都大学, 白眉センター, 助教 (00612582)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords銀河系中心部 / X線天文学 / ブラックホール / ASTRO-H / すざく衛星 / 銀河系中心 / 超新星残骸
Outline of Final Research Achievements

This research aims to study the overall structure of the high-energy phenomena in the central region of our galaxy. During this research, we found high energy phenomenon in the region: a huge plasma of 100 million K extending over the Galactic center region, and X-ray reflection nebulae, i.e. X-ray emitting molecular clouds, which are evidence for past high activity of the super massive black hole, Sagittarius A*. Unfortunately, launch of the next X-ray observatory, ASTRO-H, was postponed, and hence this research did not reach the goal. After ASTRO-H will be launched in FY2015, we will reveal the relationship among those high-energy phenomena in the Galactic center region.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (29 results)

All 2015 2014 2013 2012 Other

All Journal Article (13 results) (of which Peer Reviewed: 9 results,  Acknowledgement Compliant: 2 results) Presentation (16 results) (of which Invited: 1 results)

  • [Journal Article] A Chandrasekhar Mass Progenitor for the Type Ia Supernova Remnant 3C 397 from the Enhanced Abundances of Nickel and Manganese2015

    • Author(s)
      Yamaguchi, Hiroya; Badenes, Carles; Foster, Adam R.; Bravo, Eduardo; Williams, Brian J.; Maeda, Keiichi; Nobukawa, Masayoshi; Eriksen, Kristoffer A.; Brickhouse, Nancy S.; Petre, Robert; Koyama, Katsuji
    • Journal Title

      Astrophysical Joarnal

      Volume: 801 Issue: 2 Pages: 31-37

    • DOI

      10.1088/2041-8205/801/2/l31

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] X-Ray Study of the Supernova Remnant G337.2􀀀-0.72015

    • Author(s)
      Akihiro Takata, Masayoshi Nobukawa, Hiroyuki Uchida, Takeshi Go Tsuru, Takaaki Tanaka, Katsuji Koyama
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 67

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] X-ray filament with a strong 6.7-keV line in the Galactic center region2014

    • Author(s)
      Yamauchi, S., Shimizu, M., Nakashima, S., Nobukawa, M., Tsuru, T. G., Koyama, K.
    • Journal Title

      Publications of Astronomical Society of Japan

      Volume: 66 Issue: 6 Pages: 1256-1256

    • DOI

      10.1093/pasj/psu122

    • NAID

      40020355876

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Soft X-ray Imager (SXI) onboard ASTRO-H2014

    • Author(s)
      Kiyoshi Hayashida et al.
    • Journal Title

      Proceedings of the SPIE

      Volume: 9144 Pages: 1-8

    • DOI

      10.1117/12.2054575

    • Related Report
      2014 Annual Research Report
  • [Journal Article] Abundances in the ejecta of core-collapse supernova remnants G350.1-0.3 and G349.7+0.22014

    • Author(s)
      Yasumi, Masato; Nobukawa, Masayoshi; Nakashima, Shinya; Uchida, Hiroyuki; Sugawara, Ryusuke; Tsuru, Takeshi Go; Tanaka, Takaaki; Koyama, Katsuji
    • Journal Title

      PASJ

      Volume: 66 Issue: 4 Pages: 68-77

    • DOI

      10.1093/pasj/psu043

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Suzaku Observation of Time Variability of X-ray Emission from Molecular Clouds in the Galactic Center2014

    • Author(s)
      Nobukawa, Masayoshi; Nakashima, Shinya; Nobukawa, Kumiko K.; Koyama, Katsuji,
    • Journal Title

      uzaku-MAXI 2014: Expanding the Frontiers of the X-ray Universe, proceedings of a conference

      Volume: 1 Pages: 54-55

    • Related Report
      2014 Annual Research Report
    • Acknowledgement Compliant
  • [Journal Article] Discovery of the Recombining Plasma in the South of the Galactic Center : A Relic of the Past Galactic Center Activity?2013

    • Author(s)
      Shinya Nakashima, Masayoshi Nobukawa, Hiroyuki Uchida, Takaaki Tanaka, Takeshi Go Tsuru, Katsuji Koyama, Hiroshi Murakami, and Hideki Uchiyama
    • Journal Title

      The Astrophysical Journal

      Volume: 773 Issue: 1 Pages: 20-27

    • DOI

      10.1088/0004-637x/773/1/20

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Discovery of the Recombining Plasma in the South of the Galactic Center: A Relic of the Past Galactic Center Activity?2013

    • Author(s)
      Ryu, S. G., Nobukawa, M., Nakashima, S., Tsuru, T., Koyama, K., Uchiyama, H.
    • Journal Title

      Publications of the Astronomical Society of Japan

      Volume: 65 Issue: 2

    • DOI

      10.1093/pasj/65.2.33

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Evidence for Recombining Plasma in the Supernova Remnant G346.6-0.22013

    • Author(s)
      Shigeo Yamauchi, Masayoshi Nobukawa, Katsuji Koyama, Manami Yonemori
    • Journal Title

      Publications of the Astronomical Society of Japan, Astronomical Society of Japan

      Volume: 65

    • NAID

      40020042675

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] K-Shell Line Distribution of Heavy Elements along the Galactic Plane Observed with Suzaku2013

    • Author(s)
      Hideki Uchiyama, Masayoshi Nobukawa, Takeshi Tsuru, Katsuji Koyama
    • Journal Title

      Publications of the Astronomical Society of Japan, Astronomical Society of Japan

      Volume: 65

    • NAID

      40020042901

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Suzaku Observation of the Supergiant Fast X-Ray Transient AX J1841.0-05362012

    • Author(s)
      Kumiko Kawabata Nobukawa, Masayoshi Nobukawa, Takeshi Tsuru, Katsuji Koyama
    • Journal Title

      Publications of the Astronomical Society of Japan, Astronomical Society of Japan

      Volume: 64

    • NAID

      10031122906

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Soft X-ray Imager (SXI) onboard ASTRO-H2012

    • Author(s)
      K. Hayashida, H. tsunami, T. G. Tsuru, T. Dotani, 他22名
    • Journal Title

      SPIE

      Volume: vol.8443 Pages: 9-9

    • DOI

      10.1117/12.925095

    • Related Report
      2012 Research-status Report
  • [Journal Article] An improved correction method for charge transfer efficiency of XIS onboard Suzaku2012

    • Author(s)
      Sawada, Makoto; Nakashima, Shinya; Nobukawa, Masayoshi; Uchiyama, Hideki; XIS Team
    • Journal Title

      SUZAKU 2011: Exploring the X-ray Universe: Suzaku and Beyond. AIP Conference Proceedings

      Volume: 1427 Pages: 245-246

    • DOI

      10.1063/1.3696186

    • Related Report
      2012 Research-status Report
  • [Presentation] X線反射星雲とSgr A*の過去1000年の活動史2015

    • Author(s)
      信川正順
    • Organizer
      X線反射星雲とSgr A*の過去1000年の活動史
    • Place of Presentation
      東京大学理学部
    • Year and Date
      2015-03-23 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] NGHXTで狙うブラックホールのサイエンス2015

    • Author(s)
      信川正順
    • Organizer
      日本物理学会2015年春期大会
    • Place of Presentation
      早稲田大学
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] Suzaku Observations of X-Ray Reflection Nebulae in 2005-2013 and Past Activity of Sagittarius A*2014

    • Author(s)
      信川正順
    • Organizer
      COSPAR2014
    • Place of Presentation
      モスクワ大学、ロシア
    • Year and Date
      2014-08-02 – 2014-08-08
    • Related Report
      2014 Annual Research Report
  • [Presentation] X-ray Reflection Nebulae and Past Activity of Sgr A*2014

    • Author(s)
      信川正順
    • Organizer
      野辺山ユーザーズミーティング
    • Place of Presentation
      野辺山宇宙観測所
    • Year and Date
      2014-07-23
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Calibration method for the Astro-H SXI2014

    • Author(s)
      信川正順
    • Organizer
      9th IACHEC meeting
    • Place of Presentation
      Airlie Center (Warrenton, VI)
    • Year and Date
      2014-05-12 – 2014-05-15
    • Related Report
      2014 Annual Research Report
  • [Presentation] Suzaku Observation of Time Variability of X-ray Emission from Molecular Clouds in the Galactic Center2014

    • Author(s)
      Masayoshi Nobukawa
    • Organizer
      Suzaku-MAXI 2014 Expanding the Frontiers of the X-ray Universe
    • Place of Presentation
      愛媛大学
    • Related Report
      2013 Research-status Report
  • [Presentation] 射手座D領域からのX線反射星雲の発見2013

    • Author(s)
      信川正順
    • Organizer
      日本天文学会2013年秋期年会
    • Place of Presentation
      東北大学
    • Related Report
      2013 Research-status Report
  • [Presentation] Central Region in Our Galaxy ~Recent Result of an X-ray Satellite Suzaku~2013

    • Author(s)
      Masayoshi Nobukawa
    • Organizer
      Swiss-Kyoto Symposium
    • Place of Presentation
      ETH (スイス連邦)
    • Related Report
      2013 Research-status Report
  • [Presentation] The Past Millennium History of Sagittarius A* Deciphered by X-ray Reflection Nebulae2013

    • Author(s)
      Masayoshi Nobukawa
    • Organizer
      The Galactic Center: Feeding and Feedback in a Normal Galactic Nucleus
    • Place of Presentation
      La Fonda on the Plaza, Santa Fe, USA
    • Related Report
      2013 Research-status Report
  • [Presentation] 「宇宙X線トモグラフィ」を用いた天の川銀河中心領域の巨大分子雲の三次元位置とSgr A*の過去の活動性の解明2013

    • Author(s)
      信川正順
    • Organizer
      日本天文学会2013年春期年会
    • Place of Presentation
      埼玉大学, 埼玉
    • Related Report
      2012 Research-status Report
  • [Presentation] 次世代X線天文衛星"ASTRO-H"で巨大ブラックホールの活動史に迫る2013

    • Author(s)
      信川正順
    • Organizer
      日本天文学会2013年春期年会
    • Place of Presentation
      芝蘭会館稲盛ホール, 京都
    • Related Report
      2012 Research-status Report
  • [Presentation] すざく衛星による銀河中心領域の観測結果2012

    • Author(s)
      信川正順
    • Organizer
      「銀河系中心部」小研究会
    • Place of Presentation
      名古屋大学, 愛知
    • Related Report
      2012 Research-status Report
  • [Presentation] エックス線観測による銀河中心ブラックホールの活動史の解明2012

    • Author(s)
      信川正順
    • Organizer
      育志賞研究発表会
    • Place of Presentation
      東京大学農学部, 東京
    • Related Report
      2012 Research-status Report
  • [Presentation] Study of the Galactic Center with ASTRO-H2012

    • Author(s)
      Masayoshi Nobukawa
    • Organizer
      Kyoto Coop INN
    • Place of Presentation
      Kyoto Coop INN, Kyoto
    • Related Report
      2012 Research-status Report
  • [Presentation] K-shell Emission Line of Neutral Fe from the Galactic Center Region2012

    • Author(s)
      Masayoshi Nobukawa
    • Organizer
      Galactic center mini-workshop 2012
    • Place of Presentation
      国立天文台三鷹キャンパス, 東京
    • Related Report
      2012 Research-status Report
  • [Presentation] X-ray Reflection Nebulae and Past X-ray Flares of Sgr A*

    • Author(s)
      信川正順
    • Organizer
      銀河系中心 ALMA 研究会
    • Place of Presentation
      慶応大学
    • Related Report
      2013 Research-status Report

URL: 

Published: 2013-05-31   Modified: 2019-07-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi