On the diffuse soft X-ray emission from the nuclear region of M51
文献类型：期刊论文
| 作者 | Liu, Ji-Ren1 ; Mao, Shu-De1,2,3,4; Liu Jiren
|
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 15期号:12页码:2164-2172 |
| 关键词 | atomic processes plasmas ISM: jets and outflows galaxies: Seyfert galaxies: individual: M51 (NGC 5194) X-rays: ISM |
| 英文摘要 | We present an analysis of the diffuse soft X-ray emission from the nuclear region of M51 combining both XMM-Newton RGS and Chandra data. Most of the RGS spectrum of M51 can be fitted with a thermal model with a temperature of similar to 0.5 keV except for the 0 VII triplet, which is forbidden-line dominated. The Fe L-shell lines peak around the southern cloud, where the 0 VIII and N vu Ly alpha lines also peak. In contrast, the peak of the 0 vu forbidden line is about 10 '' offset from that of the other lines, indicating that it is from a spatially distinct component. The spatial distribution of the O VII triplet mapped by the Chandra data shows that most of the O VII triplet flux is located at faint regions near edges, instead of the southern cloud where other lines peak. This distribution of the 0 VII triplet is inconsistent with the photoionization model. Other mechanisms that could produce the anomalous O VII triplet, including a recombining plasma and charge exchange X-ray emission, are discussed. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000367563300004 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5463]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 3.Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China 4.Univ Manchester, Jodrell Bank Ctr Astrophys, Manchester M13 9PL, Lancs, England |
| 推荐引用方式 GB/T 7714 | Liu, Ji-Ren,Mao, Shu-De,Liu Jiren. On the diffuse soft X-ray emission from the nuclear region of M51[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2015,15(12):2164-2172. |
| APA | Liu, Ji-Ren,Mao, Shu-De,&Liu Jiren.(2015).On the diffuse soft X-ray emission from the nuclear region of M51.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,15(12),2164-2172. |
| MLA | Liu, Ji-Ren,et al."On the diffuse soft X-ray emission from the nuclear region of M51".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 15.12(2015):2164-2172. |
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来源：国家天文台
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