超新星残骸のニッケルＫ輝線の撮像分光観測から迫る超新星爆発機構の解明

• Project/Area Number: 18J01417
• Research Category: Grant-in-Aid for JSPS Fellows
• Allocation Type: Single-year Grants
• Section: 国内
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The University of Tokyo
• Principal Investigator: 松村 英晃 東京大学, カブリ数物連携宇宙研究機構, 特別研究員(PD)
• Project Period (FY): 2018-04-25 – 2021-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 超新星残骸 / 分子雲 / 小マゼラン雲 / RX J0046.5-7308 / 重力崩壊型超新星 / SOIピクセル検出器 / 放射線損傷 / 電荷収集効率

Outline of Annual Research Achievements

銀河系内においては、超新星残骸 (SNR) に付随する分子雲は星間ガスの衝撃波加熱/圧縮だけでなく、熱的/非熱的X線、ガンマ線、宇宙線の起源を理解する上で重要な役割を果たすことが知られている。一方で、我々の銀河以外では、SNRに付随する分子雲の観測は多くはなく、銀河系内と同様の作用を引き起こすがどうかは既知ではない。そこで我々は、大マゼラン雲や小マゼラン雲にある SNR に付随する分子雲と SNR のX線放射を観測し、低金属量な環境下での SNR と分子雲との相互作用を調査してきた。前年度の大マゼラン雲の SNR N63A に引き続き、本年度は小マゼラン雲にある SNR RX J0046.5-7308 (RXJ46) を ASTE、Mopra、ALMA、ASKAPの多数の電波望遠鏡を用いて観測を行い、SNR周辺のガス環境を調査した。そして、8つのSNRシェルに沿った分子雲を発見し、それらの内4つは12CO(J=3-2)/12CO(J=1-0)の高比率から、衝撃波加熱されていることを初めて示した。さらに、Chandra X線天文衛星の観測から、SNR の元素組成比を求めた結果、このSNRは progenitor mass が 30太陽質量以上の重力崩壊型超新星が起源であることを示した。本観測結果からRXJ46周辺の分子雲の物理状態は、銀河系内のSNR W28 と似ていることが分かり、W28と同様に RXJ46 は宇宙線の衝撃波加速やエスケープを研究するための良い実験室であることを示した。

Research Progress Status

翌年度、交付申請を辞退するため、記入しない。

Strategy for Future Research Activity

翌年度、交付申請を辞退するため、記入しない。

Research Products

• [Journal Article] Discovery of Shocked Molecular Clouds Associated with the Shell-type Supernova Remnant RX J0046.5?7308 in the Small Magellanic Cloud (2019)
  • Author(s): Sano H.、Matsumura H.、Yamane Y.、Maggi P.、Fujii K.、Tsuge K.、Tokuda K.、Alsaberi R. Z. E.、Filipovi? M. D.、Maxted N.、Rowell G.、Uchida H.、Tanaka T.、et al.
  • Journal Title: The Astrophysical Journal Volume: 881 Issue: 1 Pages: 85-85
  • DOI: 10.3847/1538-4357/ab2ade
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Measurement of Charge Cloud Size in X-Ray SOI Pixel Sensors (2019)
  • Author(s): Hagino Kouichi、Oono Kenji、Negishi Kousuke、Yarita Keigo、Kohmura Takayoshi、Tsuru Takeshi G.、Tanaka Takaaki、Uchida Hiroyuki、Harada Sodai、Okuno Tomoyuki、Kayama Kazuho、Amano Yuki、et al.
  • Journal Title: IEEE Transactions on Nuclear Science Volume: 66 Issue: 7 Pages: 1897-1905
  • DOI: 10.1109/tns.2019.2920281
  • Peer Reviewed / Open Access
• [Journal Article] Subpixel response of SOI pixel sensor for X-ray astronomy with pinned depleted diode: first result from mesh experiment (2019)
  • Author(s): Kayama K.、Tsuru T. G.、Tanaka T.、Uchida H.、Harada S.、Okuno T.、Amano Y.、Hiraga J. S.、et al.
  • Journal Title: Journal of Instrumentation Volume: 14 Issue: 06 Pages: C06005-C06005
  • DOI: 10.1088/1748-0221/14/06/c06005
  • Peer Reviewed / Open Access
• [Journal Article] Ionization age of iron ejecta in the Galactic Type Ia supernova remnant G306.3-0.9 (2019)
  • Author(s): Sawada Makoto、Tachibana Katsuhiro、Uchida Hiroyuki、Ito Yuta、Matsumura Hideaki、Bamba Aya、Tsuru Takeshi Go、Tanaka Takaaki
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 71 Issue: 3 Pages: 61-61
  • DOI: 10.1093/pasj/psz036
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] ALMA CO Observations of Supernova Remnant N63A in the Large Magellanic Cloud: Discovery of Dense Molecular Clouds Embedded within Shock-ionized and Photoionized Nebulae (2019)
  • Author(s): Sano H.、Matsumura H.、Nagaya T.、Yamane Y.、Alsaberi R. Z. E.、Filipovic M. D.、Tachihara K.、Fujii K.、Tokuda K.、Tsuge K.、Yoshiike S.、Onishi T.、Kawamura A.、Minamidani T.、Mizuno N.、Yamamoto H.、Inutsuka S.、Inoue T.、Maxted N.、Rowell G.、Sasaki M.、Fukui Y.
  • Journal Title: The Astrophysical Journal Volume: 873 Issue: 1 Pages: 40-40
  • DOI: 10.3847/1538-4357/ab02fd
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] X-ray response evaluation in subpixel level for X-ray SOI pixel detectors (2019)
  • Author(s): Negishi K.、Kohmura T.、Hagino K.、Kogiso T.、Oono K.、Yarita K.、Sasaki A.、Tamasawa K.、Go Tsuru T.i、Tanaka T.、Matsumura H.、Tachibana K.、Hayashi H.、Harada S.、Mori K.、Takeda A.、Nishioka Y.、Takebayashi N.、Yokoyama S.、Fukuda K.、Arai Y.、Miyoshi T.、Kishimoto S.、Kurachi I.
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Volume: 924 Pages: 462-467
  • DOI: 10.1016/j.nima.2018.06.073
  • Peer Reviewed
• [Journal Article] Proton radiation damage experiment for X-ray SOI pixel detectors (2019)
  • Author(s): Yarita K.、Kohmura T.、Hagino K.、Kogiso T.、Oono K.、Negishi K.、Tamasawa K.、Sasaki A.、Yoshiki S.、Tsuru T. Go、Tanaka T.、Matsumura H.、Tachibana K.、Hayashi H.、Harada S.、Takeda A.、Mori K.、Nishioka Y.、Takebayashi N.、Yokoyama S.、Fukuda K.、Arai Y.、Miyoshi T.、Kurachi I.、Hamano T.
  • Journal Title: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Volume: 924 Pages: 457-461
  • DOI: 10.1016/j.nima.2018.09.057
  • Peer Reviewed
• [Journal Article] Suzaku X-ray observations of the mixed-morphology supernova remnant CTB1 (2018)
  • Author(s): Katsuragawa Miho、Nakashima Shinya、Matsumura Hideaki、Tanaka Takaaki、Uchida Hiroyuki、Lee Shiu-Hang、Uchiyama Yasunobu、Arakawa Masanori、Takahashi Tadayuki
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 70 Issue: 6 Pages: 110-110
  • DOI: 10.1093/pasj/psy114
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Total ionizing dose effects on the SOI pixel sensor for X-ray astronomical use (2018)
  • Author(s): Koji Mori, Yusuke Nishioka, Ayaki Takeda, Nobuaki Takebayashi, Ryota Takenaka, Seina Sakakura, Shoma Yokoyama, Kohei Fukuda, Masataka Yukumoto, Takahiro Hida, Takeshi G. Tsuru, Takaaki Tanaka, Hideaki Matsumura, Hideki Hayashi, Takayoshi Kohmura, Shinya Nakashima, Yasuo Arai, Ikuo Kurachi
  • Journal Title: Nuclear Inst. and Methods in Physics Research, A Volume: 924 Pages: 473-479
  • DOI: 10.1016/j.nima.2018.07.057
  • Peer Reviewed
• [Journal Article] Performance of the Silicon-On-Insulator Pixel Sensor for X-ray Astronomy, XRPIX6E, Equipped with Pinned Depleted Diode Structure (2018)
  • Author(s): S. Harada, T. G. Tsuru, T. Tanaka, H. Uchida, H. Matsumura, K. Tachibana, H. Hayashi, A. Takeda, K. Mori, Y. Nishioka & 16 coauthors
  • Journal Title: Nuclear Inst. and Methods in Physics Research, A Volume: 924 Pages: 468-472
  • DOI: 10.1016/j.nima.2018.09.127
  • Peer Reviewed
• [Journal Article] Evaluation of Kyoto’s event-driven X-ray astronomical SOI pixel sensor with a large imaging area (2018)
  • Author(s): H. Hayashi, T. G. Tsuru, T. Tanaka, H. Uchida, H. Matsumura, K. Tachibana, S. Harada, A. Takeda, K. Mori, Y. Nishioka & 16 coauthors
  • Journal Title: Nuclear Inst. and Methods in Physics Research, A Volume: 924 Pages: 400-403
  • DOI: 10.1016/j.nima.2018.09.042
  • Peer Reviewed
• [Presentation] Spatially Resolved Spectroscopy of the Supernova Remnant N63A in the Large Magellanic Cloud (2019)
  • Author(s): H. Matsumura, H. Sano, Y. Yamane, K. Tachihara, M. Sasaki, and Y. Fukui
  • Organizer: Astrophysics of Hot Plasma in Extended X-ray Sources
  • Int'l Joint Research
• [Presentation] Suzaku X-ray Observations of Galactic Supernova Remnants to Understand the Formation Process of Recombining Plasmas (2019)
  • Author(s): Hideaki Matsumura
  • Organizer: Supernova Remnants II an Odyssey in Space after Stellar Death
  • Int'l Joint Research
• [Presentation] Suzaku X-ray Observations of Galactic Supernova Remnants to Understand the Formation Process of Recombining Plasmas (2019)
  • Author(s): Hideaki Matsumura
  • Organizer: Supernova Remnants II; an Odyssey in Space after Stellar Death
  • Int'l Joint Research
• [Presentation] Spatially Resolved Spectroscopy of the Supernova Remnant N63A in the Large Magellanic Cloud (2019)
  • Author(s): H. Matsumura, H. Sano, Y. Yamane, K. Tachihara, M. Sasaki, and Y. Fukui
  • Organizer: The X-ray Universe 2019
  • Int'l Joint Research
• [Presentation] Detection of Molecular Clouds associated with the Mixed-morphology Supernova Remnant G166.0+4.3 (2018)
  • Author(s): Hideki Matsumura
  • Organizer: SNR Workshop 2018
  • Int'l Joint Research
• [Presentation] 野辺山 45m 電波望遠鏡を用いた超新星残骸 G166.0+4.3 に付随する分子雲の発見と過電離プラズマ生成起源への示唆 (2018)
  • Author(s): 松村英晃
  • Organizer: 日本天文学会2018秋季年会
• [Presentation] Kyoto's event-driven x-ray astronomy SOI pixel sensor for the FORCE mission (2018)
  • Author(s): Tsuru, Takeshi G.; Hayashi, Hideki; Tachibana, Katsuhiro; Harada, Soudai; Uchida, Hiroyuki; Tanaka, Takaaki; Arai, Yasuo; Kurachi, Ikuo; Mori, Koji; Takeda, Ayaki; Nishioka, Yusuke; Takebayashi, Nobuaki; Yokoyama, Shoma; Fukuda, Kohei; Kohmura, Takayoshi; Hagino, Kouichi; 10 coautors
  • Organizer: SPIE 2018
  • Int'l Joint Research