X-RAY OUTBURSTS OF ESO 243-49 HLX-1: COMPARISON WITH GALACTIC LOW-MASS X-RAY BINARY TRANSIENTS
文献类型：期刊论文
| 作者 | Yan, Zhen1; Zhang, Wenda1; Soria, Roberto2; Altamirano, Diego3; Yu, Wenfei1
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2015-09-20 |
| 卷号 | 811期号:1页码:1 |
| 关键词 | accretion black hole physics X-rays: binaries X-rays: individual (HLX-1) accretion disks |
| 英文摘要 | We studied the outburst properties of the hyper-luminous X-ray source ESO 243-49 HLX-1, using the full set of Swift monitoring observations. We quantified the increase in the waiting time, recurrence time, and e-folding rise timescale along the outburst sequence, and the corresponding decrease in outburst duration, total radiated energy, and e-folding decay timescale, which confirms previous findings. HLX-1 spends less and less time in outburst and more and more time in quiescence, but its peak luminosity remains approximately constant. We compared the HLX-1 outburst properties with those of bright Galactic low-mass X-ray binary transients (LMXBTs). Our spectral analysis strengthens the similarity between state transitions in HLX-1 and those in Galactic LMXBTs. We also found that HLX-1 follows the nearly linear correlations between the hard-to-soft state transition luminosity and the peak luminosity, and between the rate of change of X-ray luminosity during the rise phase and the peak luminosity, which indicates that the occurrence of the hard-to-soft state transition of HLX-1 is similar to those of Galactic LMXBTs during outbursts. We found that HLX-1 does not follow the correlations between total radiated energy and peak luminosity, and between total radiated energy and e-folding rise/decay timescales we had previously identified in Galactic LMXBTs. HLX-1 would follow those correlations if the distance were several hundreds of kiloparsecs. However, invoking a much closer distance for HLX-1 is not a viable solution to this problem, as it introduces other, more serious inconsistencies with the observations. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SPECTRAL STATE TRANSITIONS ; DISC INSTABILITY MODEL ; HOLE CANDIDATE HLX-1 ; BLACK-HOLE ; LIGHT CURVES ; OPTICAL COUNTERPART ; TIMING VARIABILITY ; ACCRETION FLOWS ; NEUTRON-STAR ; SOLAR MASSES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000363471600024 |
| 源URL | [http://119.78.226.72/handle/331011/28388]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China 2.Curtin Univ, Int Ctr Radio Astron Res, Perth, WA 6845, Australia 3.Univ Southampton, Phys & Astron, Southampton SO17 1BJ, Hants, England |
| 推荐引用方式 GB/T 7714 | Yan, Zhen,Zhang, Wenda,Soria, Roberto,et al. X-RAY OUTBURSTS OF ESO 243-49 HLX-1: COMPARISON WITH GALACTIC LOW-MASS X-RAY BINARY TRANSIENTS[J]. ASTROPHYSICAL JOURNAL,2015,811(1):1. |
| APA | Yan, Zhen,Zhang, Wenda,Soria, Roberto,Altamirano, Diego,&Yu, Wenfei.(2015).X-RAY OUTBURSTS OF ESO 243-49 HLX-1: COMPARISON WITH GALACTIC LOW-MASS X-RAY BINARY TRANSIENTS.ASTROPHYSICAL JOURNAL,811(1),1. |
| MLA | Yan, Zhen,et al."X-RAY OUTBURSTS OF ESO 243-49 HLX-1: COMPARISON WITH GALACTIC LOW-MASS X-RAY BINARY TRANSIENTS".ASTROPHYSICAL JOURNAL 811.1(2015):1. |
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