The nature of ultraluminous X-ray sources in NGC 4565
文献类型：期刊论文
| 作者 | Wu, H ; Xue, SJ; Xia, XY; Deng, ZG; Mao, S
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| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2002-09-10 |
| 卷号 | 576期号:2页码:738-744 |
| 关键词 | galaxies : individual (NGC 4565) galaxies : nuclei X-rays : galaxies |
| 英文摘要 | We report the optical identifications of two X-ray-luminous point sources in the spiral galaxy NGC 4565 based on archive data of Chandra and the Hubble Space Telescope. The central X-ray point source, RX J1236.3+2559, is found to be the nucleus of NGC 4565 with an X-ray luminosity of L-X approximate to 4.3 x 10(39) ergs s(-1). We show that its multiband properties are consistent with its being a low-luminosity active galactic nucleus. A faint optical counterpart with B approximate to 25.1 and I approximate to 24.0 was identified for the off-nucleus X-ray point source, RX J1236.2+2558. Its extinction-corrected B magnitude is estimated to be 24.5. The X-ray to optical flux ratio (f(X)/f(B)) is about 540. From the optical and X-ray properties, we argue that RX J1236.2+2558 is an ultraluminous X-ray compact source with L-X approximate to 6.5 x 10(39) ergs s(-1). The source is probably located in a faint globular cluster at the outer edge of NGC 4565's bulge. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000177804800011 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8629]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Tianjin Normal Univ, Dept Phys, Tianjin 300074, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China 4.Univ Manchester, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England |
| 推荐引用方式 GB/T 7714 | Wu, H,Xue, SJ,Xia, XY,et al. The nature of ultraluminous X-ray sources in NGC 4565[J]. ASTROPHYSICAL JOURNAL,2002,576(2):738-744. |
| APA | Wu, H,Xue, SJ,Xia, XY,Deng, ZG,&Mao, S.(2002).The nature of ultraluminous X-ray sources in NGC 4565.ASTROPHYSICAL JOURNAL,576(2),738-744. |
| MLA | Wu, H,et al."The nature of ultraluminous X-ray sources in NGC 4565".ASTROPHYSICAL JOURNAL 576.2(2002):738-744. |
入库方式： OAI收割
来源：国家天文台
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