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X線CCD精密分光観測を用いた多重超新星爆発による宇宙線加速の解明

Research Project

Project/Area Number 07J00393
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Astronomy
Research InstitutionOsaka University

Principal Investigator

中嶋 大  Osaka University, 理学研究科, 助教

Project Period (FY) 2007 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2009: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2008: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2007: ¥1,100,000 (Direct Cost: ¥1,100,000)
KeywordsX線CCD / ASIC / ASTRO-H / すざく / 超新星残骸 / 銀河中心 / 高速信号処理 / 電荷注入法
Research Abstract

次期X線天文衛星ASTRO-H搭載X線CCDカメラ(SXI)の信号処理用アナログASICを開発した。CCD素子行とASICとを接続して試験を行った結果、現在軌道上のX線天文衛星搭載のCCDカメラに匹敵する低雑音性能を実現した。軌道上での長期正常動作を保証するために放射線耐性試験を行った。ガンマ線・陽子ビーム・鉄イオンビームを用いた試験の結果、蓄積効果については軌道上で約200年分の放射線を浴びた後でも正常に動作することを実証した。一方確率的現象については、破壊的な損傷を受けることはなかったが、データの一部が異常値を示した。この結果を受け、確率的現象に対する耐性を向上させたASICを試作した。今後この新しいASICを用いて、さらに詳細な放射線耐性試験を行う予定である。
X線天文衛星すざくを用いて、天の川銀河内にある超新星残骸(SNR)「はくちょう座ループ」を観測した。SNR中心部に近い領域において、星間物質が掃き集められたと考えられる比較的低温なプラズマと、超新星爆発を起こした恒星の内部物質と考えられる比較的高温なプラズマの2つの成分でX線放射が説明できることを示した。特に後者のプラズマにおいて、はくちょう座ループの他の領域に比べてケイ素や硫黄といった重元素が多く分布していることを発見した。また視野内のX線放射強度が明らかに非一様を示しており、はくちょう座ループの超新星爆発における非対称性を示唆する結果を得た。

Report

(3 results)
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (21 results)

All 2010 2009 2008 2007

All Journal Article (18 results) (of which Peer Reviewed: 13 results) Presentation (3 results)

  • [Journal Article] Performance of an analog ASIC developed for the front-end electronics of the Soft X-ray Imager onboard ASTRO-H2009

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

      Proceedings of SPIE 7435

    • Related Report
      2009 Annual Research Report
  • [Journal Article] Performance of an Analog ASIC Developed for X-ray CCD Camera Readout System Onboard Astronomical Satellite2009

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

      IEEE TRANSACTIONS ON NUCLEAR SCIENCE 56

      Pages: 747-751

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of X-ray CCD camera system with high readout rate using ASIC2009

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

      Nucl.Instr.and Meth.A 610

      Pages: 78-82

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] X-Ray Reflection Nebulae with Large Equivalent Widths of the Neutral Iron Kα Line in the Sagittarius C Region2009

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

      Publications of the Astronomical Society of Japan S61

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Energy-Scale Calibration of the Suzaku X-Ray Imaging Spectrometer Using the Checker Flag Charge-Injection Technique in Orbit2009

    • Author(s)
      M. Ozawa, et al.
    • Journal Title

      Publications of the Astronomical Society of Japan S61

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] New CTI Correction Method for Spaced-Row Charge Injection of the Suzaku X-Ray Imaging Spectrometer2009

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

      Publications of the Astronomical Society of Japan S61

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A New Supernova Remnant Candidate and an Associated Outflow in the Sagittarius C Region2009

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

      Publications of the Astronomical Society of Japan S61

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Nature of a Cosmic-Ray Accelerator, CTB37B, Observed with Suzaku and Chandra2009

    • Author(s)
      R. Nakamura, et al.
    • Journal Title

      Publications of the Astronomical Society of Japan S61

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of x-ray CCD camera system with high readout rate using ASIC2008

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

      Proceedings of SPIE 7011

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Development of an ASIC for multi-readout x-ray CCDs2008

    • Author(s)
      D. Matsuura, et al.
    • Journal Title

      Proceedings of SPIE 7011

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Flight calibration of the Suzaku XIS using the charge injection technique2008

    • Author(s)
      M. Ozawa, et al.
    • Journal Title

      Proceedings of SPIE 7011

    • Related Report
      2008 Annual Research Report
  • [Journal Article] NeXT SXI data processing system2008

    • Author(s)
      M. Ozaki, et al.
    • Journal Title

      Proceedings of SPIE 7011

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Discovery of a VHE gamma-ray source coincident with the supernova remnant CTB 37A2008

    • Author(s)
      F. Aharonian, et al.
    • Journal Title

      Astronomy and Astrophysics 490

      Pages: 685-693

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Performance of the Charge-Injection Capability of Suzaku XIS2008

    • Author(s)
      H. Nakajima
    • Journal Title

      Publications of the Astronomical Society of Japan 60

      Pages: 1-10

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Suzaku Spectroscopy of an X-Ray Reflection Nebula and a New Supernova Remnant Candidate in the SgrB1 Region2008

    • Author(s)
      M. Nobukawa
    • Journal Title

      Publications of the Astronomical Society of Japan 60

      Pages: 191-200

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Suzaku Wide-Band Observations of SN10062008

    • Author(s)
      A. Bamba
    • Journal Title

      Publications of the Astronomical Society of Japan 60

      Pages: 153-162

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] X-Ray Spectroscopy of SN 1006 with Suzaku2008

    • Author(s)
      H. Yamaguchi
    • Journal Title

      Publications of the Astronomical Society of Japan 60

      Pages: 141-152

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Suzaku Observation of the RCW86 Northeastern Shell2008

    • Author(s)
      H. Yamaguchi
    • Journal Title

      Publications of the Astronomical Society of Japan 60

      Pages: 123-130

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] 次期科学衛星搭載CCD信号処理用ASICの性能と放射線耐性2010

    • Author(s)
      中嶋大
    • Organizer
      日本物理学会第65回年次大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-21
    • Related Report
      2009 Annual Research Report
  • [Presentation] アナログASICを用いたX線CCD高速信号処理システムの開発2008

    • Author(s)
      中嶋大
    • Organizer
      日本物理学会2008年秋季大会
    • Place of Presentation
      山形大学
    • Year and Date
      2008-09-22
    • Related Report
      2008 Annual Research Report
  • [Presentation] 超新星残骸CTB37Aからの熱的X線放射とパルサー星雲候補天体の発見2007

    • Author(s)
      中嶋 大
    • Organizer
      日本天文学会 2007年秋季年会
    • Place of Presentation
      岐阜大学
    • Year and Date
      2007-09-27
    • Related Report
      2007 Annual Research Report

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Published: 2007-04-01   Modified: 2024-03-26  

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