X-ray reprocessing in accreting pulsar GX 301-2 observed with Insight-HXMT
文献类型：期刊论文
| 作者 | Ji, L.; Doroshenko, V.; Suleimanov, V.; Santangelo, A.; Orlandini, M.; Liu, J.; Ducci, L.; Zhang, S. N.; Nabizadeh, A.; Gavran, D. |
| 刊名 | Monthly Notices of the Royal Astronomical Society
 |
| 出版日期 | 2021 |
| 卷号 | 501页码:2522 |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/staa3788 |
| 英文摘要 | We investigate the absorption and emission features in observations of GX 301-2 detected with Insight-HXMT/LE in 2017-2019. At different orbital phases, we found prominent Fe Kα, Kβ, and Ni Kα lines, as well as Compton shoulders and Fe K-shell absorption edges. These features are due to the X-ray reprocessing caused by the interaction between the radiation from the source and surrounding accretion material. According to the ratio of iron lines (Kα and Kβ), we infer the accretion material is in a low ionization state. We find an orbital-dependent local absorption column density, which has a large value and strong variability around the periastron. We explain its variability as a result of inhomogeneities of the accretion environment and/or instabilities of accretion processes. In addition, the variable local column density is correlated with the equivalent width of the iron Kα lines throughout the orbit, which suggests that the accretion material near the neutron star is spherically distributed. |
| WOS记录号 | WOS:000608475600068 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/289778]  |
| 专题 | 高能物理研究所_粒子天体物理中心 硬X射线调制望远镜卫星 |
| 推荐引用方式 GB/T 7714 | Ji, L.,Doroshenko, V.,Suleimanov, V.,et al. X-ray reprocessing in accreting pulsar GX 301-2 observed with Insight-HXMT[J]. Monthly Notices of the Royal Astronomical Society,2021,501:2522. |
| APA | Ji, L..,Doroshenko, V..,Suleimanov, V..,Santangelo, A..,Orlandini, M..,...&Zhou, D. K..(2021).X-ray reprocessing in accreting pulsar GX 301-2 observed with Insight-HXMT.Monthly Notices of the Royal Astronomical Society,501,2522. |
| MLA | Ji, L.,et al."X-ray reprocessing in accreting pulsar GX 301-2 observed with Insight-HXMT".Monthly Notices of the Royal Astronomical Society 501(2021):2522. |
入库方式： OAI收割
来源：高能物理研究所
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