Serendipitous discovery of warm absorbers in the Seyfert 2 galaxy IRAS 18325-5926
文献类型：期刊论文
| 作者 | Zhang, Shui-Nai1,2; Gu, Qiu-Sheng1,2; Ji, Li3 ; Peng, Zhi-Xin1,2
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2011-10-01 |
| 卷号 | 11期号:10页码:1171-1184 |
| 关键词 | galaxies: Seyfert galaxies: absorption lines X-rays: galaxies galaxies: individual: IRAS 18325-5926 |
| ISSN号 | 1674-4527 |
| 英文摘要 | Warm absorption is a common phenomenon in Seyfert Is and quasars, but is rare in Seyfert 2s. We report the detection of warm absorbers with high energy resolution in the Seyfert 2 galaxy IRAS 18325-5926 for the first time with Chandra HETGS spectra. An intrinsic absorbing line system with an outflow velocity similar to 400 km s(-1) was found, which is contributed by two warm absorbers with FWHM of 570 km s(-1) and 1360 km s(-1), respectively. The two absorbers were adjacent, and moving transversely across our line of sight. We constrained the distance between the center and the absorbers to be a small value, suggesting that the absorbers may originate from the highly ionized accretion disk wind ejected five years ago. The perspective of this type 2 Seyfert provides the best situation in which to investigate the vertical part of the funnel-like outflows. Another weak absorbing line system with zero redshift was also detected, which could be due to Galactic absorption with very high temperature or an intrinsic outflow with a very high velocity similar to 6000 km s(-1). |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ACTIVE GALACTIC NUCLEI ; SOFT-X-RAY ; XMM-NEWTON VIEW ; ABSORPTION-LINES ; GRATING SPECTROMETER ; DATA RELEASE ; IONIZED-GAS ; CHANDRA ; QUASARS ; PHOTOIONIZATION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000296127800006 |
| 公开日期 | 2012-01-17 |
| 源URL | [http://159.226.72.40/handle/332002/2093]  |
| 专题 | 紫金山天文台_暗物质和空间天文实验室 |
| 作者单位 | 1.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China 2.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210093, Peoples R China 3.Chinese Acad Sci, Purple Mt Observ, Key Lab Dark Matter & Space Astron, Nanjing 210008, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Shui-Nai,Gu, Qiu-Sheng,Ji, Li,et al. Serendipitous discovery of warm absorbers in the Seyfert 2 galaxy IRAS 18325-5926[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2011,11(10):1171-1184. |
| APA | Zhang, Shui-Nai,Gu, Qiu-Sheng,Ji, Li,&Peng, Zhi-Xin.(2011).Serendipitous discovery of warm absorbers in the Seyfert 2 galaxy IRAS 18325-5926.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,11(10),1171-1184. |
| MLA | Zhang, Shui-Nai,et al."Serendipitous discovery of warm absorbers in the Seyfert 2 galaxy IRAS 18325-5926".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 11.10(2011):1171-1184. |
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来源：紫金山天文台
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