| アイテムタイプ |
default_学術雑誌論文 / Journal Article(1) |
| タイトル |
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タイトル |
The XRISM/Resolve View of the Fe K Region of Cyg X-3 |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| アクセス権 |
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アクセス権 |
metadata only access |
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アクセス権URI |
http://purl.org/coar/access_right/c_14cb |
| 著者 |
山内 茂雄
野田 博文
福島 光太郎
藤田 裕
志達 めぐみ
米山 友景
粟木 久光
海老沢 研
江副 祐一郎
榎戸 輝揚
中澤 知洋
萩野 浩一
馬場 彩
藤本 龍一
堂谷 忠靖
山内 誠
鈴木 寛大
玉川 徹
林 佑
高橋 弘充
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
The X-ray binary system Cygnus X-3 (4U 2030+40, V1521 Cyg) is luminous but enigmatic owing to the high intervening absorption. High-resolution X-ray spectroscopy uniquely probes the dynamics of the photoionized gas in the system. In this Letter, we report on an observation of Cyg X-3 with the XRISM/Resolve spectrometer, which provides unprecedented spectral resolution and sensitivity in the 2–10 keV band. We detect multiple kinematic and ionization components in absorption and emission whose superposition leads to complex line profiles, including strong P Cygni profiles on resonance lines. The prominent Fe xxv Heα and Fe xxvi Lyα emission complexes are clearly resolved into their characteristic fine-structure transitions. Self-consistent photoionization modeling allows us to disentangle the absorption and emission components and measure the Doppler velocity of these components as a function of binary orbital phase. We find a significantly higher velocity amplitude for the emission lines than for the absorption lines. The absorption lines generally appear blueshifted by ∼−500–600 km s−1. We show that the wind decomposes naturally into a relatively smooth and large-scale component, perhaps associated with the background wind itself, plus a turbulent, denser structure located close to the compact object in its orbit. |
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言語 |
en |
| 書誌情報 |
en : The Astrophysical Journal Letters
巻 977,
号 2,
p. L34,
発行日 2024
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| 出版者 |
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出版者 |
IOP PUBLISHING LTD |
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言語 |
en |
| ISSN |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
2041-8213 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.3847/2041-8213/ad8ed0 |
| 権利 |
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権利情報 |
© The Author(s) |
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言語 |
en |
https://iopscience.iop.org/article/10.3847/2041-8213/ad8ed0
