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  1. I200 高等研究院
  2. I200a 雑誌掲載論文
  3. 学術雑誌

Possible Evidence for Cosmic-Ray Acceleration in the Type Ia SNR RCW 86: Spatial Correlation between TeV Gamma-Rays and Interstellar Atomic Protons

http://hdl.handle.net/2237/00030596
http://hdl.handle.net/2237/00030596
a2e0c236-1b31-423c-8540-7f384ba218cf
名前 / ファイル ライセンス アクション
Sano_2019_ApJ_876_37.pdf Sano_2019_ApJ_876_37 (8.3 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2019-08-20
タイトル
タイトル Possible Evidence for Cosmic-Ray Acceleration in the Type Ia SNR RCW 86: Spatial Correlation between TeV Gamma-Rays and Interstellar Atomic Protons
言語 en
著者 Sano, H.

× Sano, H.

WEKO 92963

en Sano, H.

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Rowell, G.

× Rowell, G.

WEKO 92964

en Rowell, G.

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Reynoso, E. M.

× Reynoso, E. M.

WEKO 92965

en Reynoso, E. M.

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Jung-Richardt, I.

× Jung-Richardt, I.

WEKO 92966

en Jung-Richardt, I.

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Yamane, Y.

× Yamane, Y.

WEKO 92967

en Yamane, Y.

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Nagaya, T.

× Nagaya, T.

WEKO 92968

en Nagaya, T.

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Yoshiike, S.

× Yoshiike, S.

WEKO 92969

en Yoshiike, S.

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Hayashi, K.

× Hayashi, K.

WEKO 92970

en Hayashi, K.

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Torii, K.

× Torii, K.

WEKO 92971

en Torii, K.

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Maxted, N.

× Maxted, N.

WEKO 92972

en Maxted, N.

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Mitsuishi, I.

× Mitsuishi, I.

WEKO 92973

en Mitsuishi, I.

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Inoue, T.

× Inoue, T.

WEKO 92974

en Inoue, T.

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Inutsuka, S.

× Inutsuka, S.

WEKO 92975

en Inutsuka, S.

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Yamamoto, H.

× Yamamoto, H.

WEKO 92976

en Yamamoto, H.

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Tachihara, K.

× Tachihara, K.

WEKO 92977

en Tachihara, K.

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Fukui, Y.

× Fukui, Y.

WEKO 92978

en Fukui, Y.

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 © 2019. The American Astronomical Society
抄録
内容記述 We present a detailed morphological study of TeV gamma-rays, synchrotron radiation, and interstellar gas in the young Type Ia supernova remnant (SNR) RCW 86. We find that the interstellar atomic gas shows good spatial correlation with the gamma-rays, indicating that the TeV gamma-rays from RCW 86 are likely predominantly of hadronic origin. In contrast, the spatial correlation between the interstellar molecular cloud and the TeV gamma-rays is poor in the southeastern shell of the SNR. We argue that this poor correlation can be attributed to the low-energy cosmic rays (~1 TeV) not penetrating into the dense molecular cloud due to an enhancement of the turbulent magnetic field around the dense cloud of ~10–100 μG. We also find that the southwestern shell, which is bright in both synchrotron X-ray and radio continuum radiation, shows a significant gamma-ray excess compared with the interstellar proton column density, suggesting that leptonic gamma-rays via inverse Compton scattering possibly contribute alongside the hadronic gamma-rays. The total cosmic-ray energies of the young TeV gamma-ray SNRs—RX J1713.7−3946, Vela Jr, HESS J1731−347, and RCW 86—are roughly similar, which indicates that cosmic rays can be accelerated in both the core-collapse and Type Ia supernovae. The total energy of cosmic rays derived using the gas density, ~1048–1049 erg, gives a safe lower limit due mainly to the low filling factor of interstellar gas within the shell.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 IOP publishing
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.3847/1538-4357/ab108f
ISSN(print)
収録物識別子タイプ PISSN
収録物識別子 1538-4357
書誌情報 en : The Astrophysical Journal

巻 876, 号 1, p. 37, 発行日 2019-05-01
著者版フラグ
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