Long period binary on behalf of evolution of massive stars

• Project/Area Number: 23540280
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Astronomy
• Research Institution: Japan Aerospace Exploration Agency
• Principal Investigator: MAEDA Yoshitomo 独立行政法人宇宙航空研究開発機構, 宇宙科学研究所, 助教 (80342624)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
• Keywords: 大質量星 / X線天文学

Research Abstract

We have been observing massive-star binaries with a long orbital period of about 1 year or longer. Because high sensitivity is necessary for elemental line and absorption such as CNO, we used the grating spectrometer of the "XMM-Newton" satellite. We used the Suzaku satellites to get a broad band spectrum to find a mass-loss rate of the stellar winds.
We found that observation results could not explain in the simple model of standard colliding winds. The estimate of the mass-releasing rate using the absorption columns are useful.

Research Products

• [Journal Article] Discriminating the Progenitor Type of Supernova Remnants with Iron K-shell Emission (2014)
  • Author(s): Yamaguchi, Hiroya, et al
  • Journal Title: The Astrophysical Journal Letters Volume: 785 Pages: 4-4
  • Peer Reviewed
• [Journal Article] Discriminating the Progenitor Type of Supernova Remnants with Iron K-shell Emission (2014)
  • Author(s): Yamaguchi, Hiroya, et al.
  • Journal Title: The Astrophysical Journal Letters Volume: 785 Issue: 2 Pages: 5-5
  • DOI: 10.1088/2041-8205/785/2/l27
  • Peer Reviewed / Open Access
• [Journal Article] A new eclipsing low-mass X-ray binary with a giant companion (2012)
  • Author(s): Maeda, Yoshitomo; Mori, Hideyuki; Dotani, Tadayasu
  • Journal Title: Advances in Space Research Volume: 51 Pages: 1-1
  • Peer Reviewed
• [Journal Article] Suzaku Observations of Unidentied X-Ray Sources toward the Galactic Bulge (2012)
  • Author(s): Mori, Hideyuki; Maeda, Yoshitomo; Ueda, Yoshihiro; Dotani, Tadayasu
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 64 Pages: 1-1
  • Peer Reviewed
• [Journal Article] Suzaku Observations of Unidentified X-Ray Sources toward the Galactic Bulge (2012)
  • Author(s): Mori, Hideyuki; Maeda, Yoshitomo; Ueda, Yoshihiro; Dotani, Tadayasu; Ishida, Manabu Affiliation:
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 64
  • NAID: 120006828505
  • Peer Reviewed
• [Journal Article] An X-ray spectral study of colliding wind binaries (2011)
  • Author(s): Sugawara, Y., Maeda, Y., \& Tsuboi, Y.
  • Journal Title: American Institute of Physics Conference Series Volume: 1427 Pages: 296297-296297
  • DOI: 10.1063/1.3696211
• [Presentation] X-ray line analysis of the Fe groups of Cassiopeia A with Suzaku (2014)
  • Author(s): Maeda, Y, et al
  • Organizer: Suzaku-MAXI 2014 "Expanding the Frontiers of the X-ray Universe"
  • Place of Presentation: Ehime, Japan
• [Presentation] The X-ray in formation on the progenitors of core - collapse supernovae (2013)
  • Author(s): Sugawara, Y., Maeda, Y, et al
  • Organizer: Multi - messengers from Core - Collapse Supernovae
  • Place of Presentation: Fukuoka, Japan
• [Presentation] 宇宙科学研究所 新X 線ビームラインの構築 (2013)
  • Author(s): 佐藤寿紀, 市原昂, 富川和紀, 石田學, 前田良知, 林多佳由, 他
  • Organizer: 日本天文学会2013年春季年会
  • Place of Presentation: 埼玉大学
• [Presentation] 宇宙科学研究所新ビームラインの優位性の検証 (2013)
  • Author(s): 林多佳由, 市原昴, 富川和紀, 佐藤寿紀, 佐藤拓郎, 前田良知, 石田學
  • Organizer: 日本天文学会2013年春季年会
  • Place of Presentation: 埼玉大学
• [Presentation] 高エネルギー宇宙物理学の最新成果と将来への展望 (2013)
  • Author(s): 前田良知, 他
  • Organizer: 第13回高宇連研究会
  • Place of Presentation: 石川県文教会館(金沢市尾山町10-5)
• [Presentation] Astro-H (2013)
  • Author(s): 前田良知、他 The Astro-H team
  • Organizer: 第13回高宇連研究会「高エネルギー宇宙物理学の最新成果と将来への展望」
  • Place of Presentation: 石川県文教会館 (金沢市尾山町10-5)
• [Presentation] 宇宙科学研究所~新X線ビームラインの構築 (2013)
  • Author(s): 佐藤寿紀、市原昂、富川和紀、石田學、前田良知、林多佳由
  • Organizer: 日本天文学会2013年春季年会
  • Place of Presentation: 埼玉大学
• [Presentation] 宇宙科学研究所 新ビームラインの優位性の検証 (2013)
  • Author(s): 林多佳由, 市原昴, 富川和紀, 佐藤寿紀, 佐藤拓郎, 前田良知, 石田學
  • Organizer: 日本天文学会2013年春季年会
  • Place of Presentation: 埼玉大学
• [Presentation] An X-ray study of mass-loss rate and wind acceleration of massive stars (2012)
  • Author(s): Maeda, Y
  • Organizer: IAU 279
  • Place of Presentation: 栃木県日光市
  • Year and Date: 2012-03-12
• [Presentation] 大質量星の質量放出率と星風加速の研究 (2012)
  • Author(s): Maeda, Y
  • Organizer: ガンマ線バーストで読み解く太古の宇宙
  • Place of Presentation: 東京工業大学
  • Year and Date: 2012-02-06
• [Presentation] JAXA 宇宙科学研究所30m X 線ビームライン改造計画 (2012)
  • Author(s): 前田良知, 佐藤寿紀, 富川和紀, 市原昂, 佐藤拓郎, 林多佳由, 石田学
  • Organizer: 日本天文学会2012年秋季年会
  • Place of Presentation: 大分大学
• [Presentation] 系内Wolf-Rayet 星のX線帯域における統計的調査II (2012)
  • Author(s): 菅原泰晴, 坪井陽子, 前田良知
  • Organizer: 日本天文学会2012年秋季年会
  • Place of Presentation: 大分大学
• [Presentation] JAXA 宇宙科学研究所 30m X線ビームライン改造計画 (2012)
  • Author(s): 前田良知、佐藤寿紀、富川和紀、市原 昂、佐藤拓郎、林多佳由 、石田学
  • Organizer: 日本天文学会2012年秋季年会
  • Place of Presentation: 大分大学旦野原キャンパス
• [Presentation] 系内Wolf-Rayet星のＸ線帯域における統計的調査II (2012)
  • Author(s): 菅原 泰晴、坪井 陽子、前田 良知
  • Organizer: 日本天文学会2012年秋季年会
  • Place of Presentation: 大分大学旦野原キャンパス
• [Presentation] 大質量星の質量放出率と星風加速の研究 (2012)
  • Author(s): 前田良知
  • Organizer: ガンマ線バーストで読み解く太古の宇宙
  • Place of Presentation: 東京都大田区