Pulse phase-resolved analysis of SMC X-3 during its 2016-2017 super-Eddington outburst
文献类型：期刊论文
| 作者 | Weng, SS; Ge MY(葛明玉) ; Yuan, QR; Bian, WH; Ge, MY; Zhao, HH
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| 刊名 | ASTROPHYSICS AND SPACE SCIENCE
 |
| 出版日期 | 2018 |
| 卷号 | 363期号:2页码:21 |
| ISSN号 | 0004-640X |
| 关键词 | Accretion, accretion disks Stars: neutron Pulsars: general X-rays: binaries X-rays: individual (SMC X-3) |
| DOI | 10.1007/s10509-017-3245-2 |
| 文献子类 | Article |
| 英文摘要 | The Be X-ray pulsar SMC X-3 underwent an extra long and ultraluminous giant outburst from 2016 August to 2017 March. The peak X-ray luminosity is up to similar to 10(39) erg/s, suggesting a mildly super-Eddington accretion onto the strongly magnetized neutron star. It therefore bridges the gap between the Galactic Be/X-ray binaries (L-X(peak) <= 10(38) erg/s) and the ultraluminous X-ray pulsars (L-X(peak) >= 10(40) erg/s) found in nearby galaxies. A number of observations were carried out to observe the outburst. In this paper, we perform a comprehensive phase-resolved analysis on the high quality data obtained with the Nustar and XMM-Newton, which were observed at a high and intermediate luminosity levels. In order to get a better understanding on the evolution of the whole extreme burst, we take the Swift results at the low luminosity state into account as well. At the early stage of outburst, the source shows a double-peak pulse profile, the second main peak approaches the first one and merges into the single peak at the low luminosity. The second main peak vanishes beyond 20 keV, and its radiation becomes much softer than that of the first main peak. The line widths of fluorescent iron line vary dramatically with phases, indicating a complicated geometry of accretion flows. In contrast to the case at low luminosity, the pulse fraction increases with the photon energy. The significant small pulse fraction detected below 1 keV can be interpreted as the existence of an additional thermal component located at far away from the central neutron star. |
| 电子版国际标准刊号 | 1572-946X |
| WOS关键词 | SMALL-MAGELLANIC-CLOUD ; X-RAY SOURCES ; NEUTRON-STARS ; ACCRETION ; LUMINOSITY ; EMISSION ; DISTANCE ; BINARIES ; PERIOD |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000424039100010 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/285599]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Weng, SS,Ge MY,Yuan, QR,et al. Pulse phase-resolved analysis of SMC X-3 during its 2016-2017 super-Eddington outburst[J]. ASTROPHYSICS AND SPACE SCIENCE,2018,363(2):21. |
| APA | Weng, SS,葛明玉,Yuan, QR,Bian, WH,Ge, MY,&Zhao, HH.(2018).Pulse phase-resolved analysis of SMC X-3 during its 2016-2017 super-Eddington outburst.ASTROPHYSICS AND SPACE SCIENCE,363(2),21. |
| MLA | Weng, SS,et al."Pulse phase-resolved analysis of SMC X-3 during its 2016-2017 super-Eddington outburst".ASTROPHYSICS AND SPACE SCIENCE 363.2(2018):21. |
入库方式： OAI收割
来源：高能物理研究所
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