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Stury of interstellar and intergalactic media based on X-ray line spectra

Research Project

Project/Area Number 12304009
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Astronomy
Research InstitutionTokyo Metropolitan University

Principal Investigator

OHASHI Takaya  Tokyo Metropolitan University, Graduate School of Science, Professor, 大学院・理学研究科, 教授 (70183027)

Co-Investigator(Kenkyū-buntansha) ISHIDA Manabu  Tokyo Metropolitan University, Graduate School of Science, Associate Professor, 大学院・理学研究科, 助教授 (20249931)
ISHISAKI Yoshitaka  Tokyo Metropolitan University, Graduate School of Science, Research Associate, 大学院・理学研究科, 助手 (10285091)
SASAKI Shin  Tokyo Metropolitan University, Graduate School of Science, Research Associate, 大学院・理学研究科, 助手 (80262260)
YAMASAKI Noriko  JAXA, Institute of Space and Astronautical Science, Associate Professor, 宇宙科学研究本部, 助教授 (20254146)
FUIIMOTO Ryuichi  JAXA, Institute of Space and Astronautical Science, Research Associate, 宇宙科学研究本部, 助手 (20280555)
Project Period (FY) 2000 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥49,700,000 (Direct Cost: ¥42,200,000、Indirect Cost: ¥7,500,000)
Fiscal Year 2003: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2002: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
Fiscal Year 2001: ¥14,820,000 (Direct Cost: ¥11,400,000、Indirect Cost: ¥3,420,000)
Fiscal Year 2000: ¥17,200,000 (Direct Cost: ¥17,200,000)
KeywordsX-ray astronomy / Clusters of galaxies / Intergalactic medium / Energy resolution / Microcalorimeters / Low-temperature detectors / Transition-edge sensors / 超伝導遷移端検出器 / 星間物質 / 宇宙観測 / 科学衛星 / クェーサー / X線スペクトル / SQUID
Research Abstract

The purpose of this research is to observe X-ray emission from extended hot plasmas in the universe and to study their dynamical evolution. The research activity consists of four areas : observational study of galaxies and clusters of galaxies in X-rays, theoretical study of cosmic plasmas, building and testing of microcalorimeter instrument on-board Astro-E2, and development of TES microcalorimeter system for future spectroscopic observations. In the X-ray observation, ASCA and Chandra revealed that many clusters have experienced mergers based on the temperature and metallicity distribution of bright systems. It is hoped that Astro-E2 will detect significant gas motion in many clusters of galaxies. We have proposed a dedicated small X-ray mission to survey warm-hot intergalactic medium using Oxygen emission lines with an array of TES calorimeters. Theoretical study on the possible heat source for the cluster gas was performed. Microcalorimeters for Astro-E2 have been produced, and the ground tests showed that most of the pixels have energy resolution as good as 6 eV. We also contributed fabrication of filter wheel and software system. We also developed TES calorimeter array in collaboration with Waseda University, Seiko Instruments and Mitsubishi Heavy Industory. For a single pixel TES, we achieved energy resolution of 6 eV, close to the world record, and fabricated a test model of the array sensor with 256 pixels, which produced X-ray signals successfully. We also developed a small adiabatic demagnetization refrigerator system capable for calorimeter testings outside of the laboratory. Another new type of instrument, magnetic calorimeters, was also developed and produced signals to 5.5 MeV alpha particles.

Report

(5 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (37 results)

All 2004 2003 2002 Other

All Journal Article (11 results) Book (1 results) Publications (25 results)

  • [Journal Article] Inhomogeneity in the Hot Intracluster Medium of Abell 1060 Observed with Chandra2004

    • Author(s)
      A.Hayakawa 他4名
    • Journal Title

      Publ.Astron.Soc.Japan 56

      Pages: 743-752

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Performance of a Bridge-type TES Microcalorimeter, Excess Noise Characteristics and Dependence of Sensitivity on Current2004

    • Author(s)
      Y.Takei 他19名
    • Journal Title

      Nucl.Instr.and Meth in Phys.Res. A-523

      Pages: 134-146

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Detection of 5.5 MeV α-particles with a Magnetic Calorimeter2004

    • Author(s)
      K.Sato 他5名
    • Journal Title

      J.J.Appl.Phys. 43

      Pages: 6477-6478

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Inhomogeneity in the Hot Intracluster Medium of Abell 1060 Observed with Chandra2004

    • Author(s)
      A.Hayakawa et al.
    • Journal Title

      Publ.Astron.Soc.Japan 56

      Pages: 743-752

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Performance of a Bridge-type TES Microcalorimeter, Excess Noise Characteristics and Dependence of Sensitivity on Current2004

    • Author(s)
      Y.Takei et al.
    • Journal Title

      Nucl.Instr.Phys.Res. A-523

      Pages: 134-146

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Detection of 5.5 MeV α-particles with a Magnetic Calorimeter2004

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

      J.J.Appl.Phys. 43

      Pages: 6477-6478

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Chandra Observation of the Core of the Galaxy Cluster AWM 72003

    • Author(s)
      T.Furusho, N.Y.Yamasaki, T.Ohashi
    • Journal Title

      Astrophys.Journal 596

      Pages: 181-189

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Two Dimensional Imaging by Series-Connected STJs with Sapphire Absorber2002

    • Author(s)
      A.Kushino 他4名
    • Journal Title

      Nucl.Instr.and Meth in Phys.Res. A-487

      Pages: 488-493

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Chandra Observation of the Central Galaxies in the A 1060 Cluster of Galaxies2002

    • Author(s)
      N.Y.Yamasaki, T.Ohashi, T.Furusho
    • Journal Title

      Astrophys.Journal 578

      Pages: 833-841

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Two Dimensional Imaging by Series-connected STJs with Sapphire Absorber2002

    • Author(s)
      A.Kushino, Y.Murakami, N.Y.Yamasaki, T.Ohashi, M.Kurakado
    • Journal Title

      Nucl.Instr.Phys.Res. A-487

      Pages: 488-493

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Journal Article] Chandra Observation of the Central Galaxies in the A1060 Cluster of Galaxies2002

    • Author(s)
      N.Y.Yamasaki, T.Ohashi, T.Furusho
    • Journal Title

      Astrophys.Journal 578

      Pages: 833-841

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Book] 宇宙を見る新しい目2004

    • Author(s)
      大橋隆哉(分担執筆)
    • Total Pages
      223
    • Publisher
      日本評論社(日本物理学会編)
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Yoshikawa, K.他6名: "Detectability of the Warm/Hot Intergalactic Medium through Emission Lines of 0 VII and 0 VIII"Publ.Astron.Soc.Japan. 55-5. 879-890 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Furusho, T., Yamasaki, N.Y., Ohashi, T.: "Chandra Observation of the Core of the Galaxy Cluster AWM 7"Astrophys.Journal. 596-1. 181-189 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Watanabe, S他9名: "Detection of a Fully Resolved Compton Shoulder of the Iron Kα Line in the Chandra X-Ray Spectrum of GX 301-2"Astrophys.Journal Letters. 597-1. L37-L40 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Miiyaji, T.他5名: "ASCA Observation of Unusually X-Ray-Hard Radio-Quiet QSO Kazl02"Publ.Astron.Soc.Japan. 55-2. L11-L15 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Shimizu, M.他3名: "Mass-Temperature Relation of Galaxy Clusters : Implications from the Ob served Luminosity-Temperature Relation and X-Ray Temperature Function"Astrophys.Journal. 590-1. 197-206 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Inoue, H., Yamasaki, N.Y.: "An X-Ray Detection Possibility of Star-Formation-Bursting Proto-Elliptical Galaxies"Publ.Astron.Soc.Japan. 55-3. 631-634 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] A.Kushino 他6名: "Study of the X-Ray Background Spectrum and Its Large-Scale Fluctuation with ASCA"Publ. Astron. Soc. Japan. 54-3. 327-352 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] A.Kushino 他4名: "Two dimensional imaging by series-connected STJs with sapphire absorber"Nucl. Instr. and Meth.. A-487. 488-493 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] N.Y.Yamasaki 他2名: "Chandra Observation of the Central Galaxies in the A1060 Cluster of Galaxies"Astrophys. J.. 578. 833-841 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] S.Osone 他4名: "Search for Hot Gas in the Local Group with ASCA"Publ. Astron. Soc. Japan. 54-3. 387-392 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Endo 他5名: "Broadening of Nearly Neutral Iron Emission Line of GX 301-2 Observed with ASCA"Astrophys. J.. 574. 879-898 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] M.Kawasaki 他5名: "ASCA Observations of the Supernova Remnant IC 443 : Thermal Sructure and Detection of Overionized Plasma"Astronpys. J.. 572. 897-905 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.Furusho 他8名: "ASCA Temperature Maps of Three Clusters of Galaxies : Abell 1060, AWM 7, and the Centaurus Cluster"Publ.Astron.Soc.Japan. 53-3. 421-432 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Y.Ishisaki 他5名: "ASCA Deep Survey in the Lockman Hole Field"Publ.Astron.Soc.Japan. 53-3. 445-457 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] H.Ezawa 他8名: "ASCA Observations of the Temperature Structure and Metal Distribution in the Perseus Cluster of Galaxies"Publ.Astron.Soc.Japan. 53-4. 595-604 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] T.Furusho 他4名: "Temperature Map of the Perseus Cluster of Galaxies Observed with ASCA"Astrophysical Journal Letters. 561. L165-L169 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] S.Sasaki, N.Y.Yamasaki: "Scaling Relation to Understand Non-Detection of Cold Gas at the Cluster Center"Publ.Astron.Soc.Japan. 54-1. L1-L15 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] A.Kushino 他8名: "Erbium-doped Yttrium alminum garnet as a magnetic refrigerant for low temperature X-ray detectors"Journal of Applied Physics. 90-11. 5812-5818 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 大橋隆哉 他(岡村定矩編): "天文学への招待"朝倉書店. 212 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kenichi Kikuchi, その他10名: "Detection of an X-Ray Hot Region in the Virgo Cluster of Galaxies with ASCA "Astrophysical Journal Letters. Vol531. L33 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Yasushi Fukazawa, その他7名: "Statistical properties of metal abundances of the intracluster medium in the central region of clusters"Monthly Notices of the Royal Astronomical Society. 313. 21 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Kyoko Matsushita, その他2名: "Metal Abundances in the Hot Interstellar Medium in Early-Type Galaxies Observed with ASCA"Publications Astronomical Society of Japan. 52. 685-710 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Noriko Y.Yamasaki, その他2名: "ASCA Observation of the Lyman-limit Quasar PKS2145+067"Publications Astronomical Society of Japan. 52. 763-767 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Yasushi Fukazawa, その他6名: "Detection of Excess Hard X-ray Emission from the Group of Galaxies HCG62"Astrophysical Journal Letters. 546. L87-L90 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] Ryou Shibata, その他7名: "Temperature Map of the Virgo Cluster of Galaxies Observed with ASCA"Astrophysical Journal . (発表予定). (2001)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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