未同定X線天体を用いた新しい中性子連星系の探査

• Project Area: Nuclear matter in neutron stars investigated by experiments and astronomical observations
• Project/Area Number: 25105516
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Japan Aerospace Exploration Agency
• Principal Investigator: 前田 良知 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): 2013-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: X線天文学

Outline of Annual Research Achievements

ASTRO-H 衛星での吸収線などの観測を実現するため、SXS の集光を担う望遠鏡の応答関数の作成を進めた。測定を完了し、現在は打ち上げに備えて、温度制御周りの仕上げに向け、準備を進めている。
また、SPring-8 （３回）やKEK（１回）にてマシンタイムを取得し、光学定数などの測定も行った。その測定結果は2015.4のInternational Astronomical Consortium for High Energy Calibration（第10回 at 北京）で速報を予定している。
Chandra, Suzaku による新しく発見したLMXB の観測提案を進め、Suzaku AO10 では１天体採択されている。Chandra については、審査中である。
現在までに獲得した未同定天体の解析を進め、そのうち一天体の起源が銀河団であることがわかった。その件について査読論文として投稿している（審査中）。

Research Progress Status

26年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

26年度が最終年度であるため、記入しない。

Research Products

• [Journal Article] Hard x-ray telescopes to be onboard ASTRO-H (2014)
  • Author(s): Awaki, H. et al.
  • Journal Title: Applied Optics Volume: 53 Pages: 7664-7676
  • Peer Reviewed
• [Journal Article] Optical measurements of ASTRO-H HXT-2 between before and after the environmental tests (2014)
  • Author(s): Miyazawa, T. et al.
  • Journal Title: Suzaku-MAXI 2014: Expanding the Frontiers of the X-ray Universe Volume: 1 Pages: 333-334
• [Journal Article] The peculiar X-ray variations of the enigmatic massive binary WR 21a (2014)
  • Author(s): Sugawara, Y. et al.
  • Journal Title: Suzaku-MAXI 2014: Expanding the Frontiers of the X-ray Universe Volume: 1 Pages: 220-221
• [Journal Article] Change of the spectrum in persistent state of X-ray burster GRS1747-312 - And other phenomena in the persistent state (2014)
  • Author(s): Saji, S. et al.
  • Journal Title: Suzaku-MAXI 2014: Expanding the Frontiers of the X-ray Universe Volume: 1 Pages: 212-213
• [Journal Article] Suzaku Weekly Monitoring of the Galactic Nucleus Sgr A* (2014)
  • Author(s): Murakami, H. et al.
  • Journal Title: Suzaku-MAXI 2014: Expanding the Frontiers of the X-ray Universe Volume: 1 Pages: 186-187
• [Journal Article] Suzaku spectroscopic studies of unidentified ROSAT sources towards the Galactic bulge (2014)
  • Author(s): Mori, H. et al.
  • Journal Title: Suzaku-MAXI 2014: Expanding the Frontiers of the X-ray Universe Volume: 1 Pages: 182-183
• [Journal Article] X-ray imaging of the Cr and Fe lines from Cassiopeia A (2014)
  • Author(s): Maeda, Y. et al.
  • Journal Title: Suzaku-MAXI 2014: Expanding the Frontiers of the X-ray Universe Volume: 1 Pages: 174-175
• [Journal Article] Hard X-ray Variation of Cassiopeia A (2014)
  • Author(s): Sato, T. et al.
  • Journal Title: Suzaku-MAXI 2014: Expanding the Frontiers of the X-ray Universe Volume: 1 Pages: 62-63
• [Journal Article] A thermonuclear X-ray burst with photospheric expansion from GRS 1747-312 observed with Suzaku (2014)
  • Author(s): Iwai, M. et al.
  • Journal Title: Suzaku-MAXI 2014: Expanding the Frontiers of the X-ray Universe Volume: 1 Pages: 158-159
• [Journal Article] On-orbit Power Generation of Solar Array Paddle of ''Suzaku'' (2014)
  • Author(s): Maeda, Y. et al.
  • Journal Title: Suzaku-MAXI 2014: Expanding the Frontiers of the X-ray Universe Volume: 1 Pages: 45-45
• [Journal Article] Development of the Four-stage X-ray telescope (FXT) for the DIOS mission (2014)
  • Author(s): Tawara, Y. et al.
  • Journal Title: SPIE Volume: 9144 Pages: 914461-914461
  • DOI: 10.1117/12.2055082
• [Journal Article] Revealing a detailed performance of the soft x-ray telescopes of the ASTRO-H mission (2014)
  • Author(s): Sato T. et al.
  • Journal Title: SPIE Volume: 9144 Pages: 9144599-9144599
  • DOI: 10.1117/12.2055622
  • Open Access
• [Journal Article] Ground-based x-ray calibration of the Astro-H soft x-ray telescopes (2014)
  • Author(s): Iizuka, R. et al.
  • Journal Title: SPIE Volume: 9144 Pages: 91445811-91445811
  • DOI: 10.1117/12.2054626
  • Open Access
• [Journal Article] Upgrade of the thirty-meter x-ray pencil beam line at the Institute of Space and Astronautical Science (2014)
  • Author(s): Hayashi, T. et al.
  • Journal Title: SPIE Volume: 9144
  • DOI: 10.1117/12.2055741
  • Open Access
• [Journal Article] ASTRO-H Soft X-ray Telescope (SXT) (2014)
  • Author(s): Soong, Y. et al.
  • Journal Title: SPIE Volume: 9144 Pages: 91442814-91442814
  • DOI: 10.1117/12.2056804
  • Open Access
• [Journal Article] ASTRO-H Hard X-ray Telescope (HXT) (2014)
  • Author(s): Awaki. H., et al.
  • Journal Title: SPIE Volume: 9144 Pages: 9144269-9144269
  • DOI: 10.1117/12.2054633
  • Open Access
• [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 Cluster of Galaxies Towards the Galactic Bulge, Suzaku J1759-3450 (2013)
  • Author(s): Hideyuki Mori, Yoshitomo Maeda, Akihiro Furuzawa, Yoshito Haba, Yoshihiro Ueda
  • Journal Title: Publications of the Astronomical Society of Japan Volume: Vol. 65, Article No. 102 Issue: 5 Pages: 1-7
  • DOI: 10.1093/pasj/65.5.102
  • NAID: 40020043301
  • Peer Reviewed / Open Access
• [Journal Article] The ASTRO-H Mission (2013)
  • Author(s): Maeda, Y., Takahashi, T., Mitsuda, K., Kelley, R
  • Journal Title: Acta Polytechnica Volume: 53 Pages: 803806-803806
  • Peer Reviewed / Open Access
• [Presentation] Suzaku By-Week Monitoring of the Galactic Center Sgr A * in X-rays (III) (2015)
  • Author(s): 前田良知、他
  • Organizer: 日本天文学会
  • Place of Presentation: 大阪大学
  • Year and Date: 2015-03-18 – 2015-03-21
• [Presentation] ASTRO-H搭載X線望遠鏡開発の現状 (2015)
  • Author(s): 前田良知、他
  • Organizer: 第15回 宇宙科学シンポジウム
  • Place of Presentation: 宇宙科学研究所
  • Year and Date: 2015-01-06 – 2015-01-07
• [Presentation] Suzaku By-Week Monitoring of the Galactic Center Sgr A* in X-rays (II) (2014)
  • Author(s): 前田良知、他
  • Organizer: 日本天文学会
  • Place of Presentation: 山形大学（山形県山形市）
  • Year and Date: 2014-09-11 – 2014-09-13
• [Presentation] X-ray Weekly Monitoring of the Galactic Center Sgr A* with Suzaku (2014)
  • Author(s): Maeda, Y., M.~Nobukawa, T.~Hayashi, R.~Iizuka, T.~Saitoh, and H.~Murakami
  • Organizer: 40th COSPAR Scientific Assembly
  • Place of Presentation: モスクワ、ロシア
  • Year and Date: 2014-08-02 – 2014-08-10
• [Presentation] Suzaku By-Week Monitoring of the Galactic Center Sgr A* in X-rays (2014)
  • Author(s): 前田良知
  • Organizer: 日本天文学会
  • Place of Presentation: 国際基督教大学
  • Year and Date: 2014-03-19 – 2014-03-22
• [Presentation] X-ray line analysis of the Fe groups of Cassiopeia A with Suzaku (2014)
  • Author(s): Maeda et al.
  • Organizer: Expanding the Frontiers of the X-ray Universe
  • Place of Presentation: 愛媛
  • Year and Date: 2014-02-19 – 2014-02-22
• [Presentation] On-orbit Power Generation of Solar Array Paddle of the X-ray observatory “Suzaku” (2014)
  • Author(s): Maeda et al.
  • Organizer: Expanding the Frontiers of the X-ray Universe
  • Place of Presentation: 愛媛
  • Year and Date: 2014-02-19 – 2014-02-22
• [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: 福岡
  • Year and Date: 2013-12-02 – 2013-12-06
• [Presentation] X線天文衛星 Suzaku による銀河系中心核 Sgr A* のモニター観測 (2013)
  • Author(s): Maeda et al.
  • Organizer: ALMA銀河系中心ワークショップ2013
  • Place of Presentation: 慶応大学
  • Year and Date: 2013-11-26 – 2013-11-27
• [Presentation] X-ray line analysis of the Fe groups of Cassiopeia A with Suzaku (2013)
  • Author(s): 前田良知
  • Organizer: 日本天文学会
  • Place of Presentation: 東北大学
  • Year and Date: 2013-09-10 – 2013-09-12