PHASE-RESOLVED SPECTRAL ANALYSIS OF 4U 1901+03 DURING ITS OUTBURST
文献类型：期刊论文
| 作者 | Lei, Ya-Juan1 ; Chen, Wei1; Qu, Jin-Lu1; Song, Li-Ming1; Zhang, Shu1; Lu, Yu1; Zhang, Hao-Tong2; Li, Ti-Pei1,3
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| 刊名 | ASTROPHYSICAL JOURNAL
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| 出版日期 | 2009-12-20 |
| 卷号 | 707期号:2页码:1016-1022 |
| 关键词 | pulsars: individual (4U 1901+03) stars: neutron X-rays: stars |
| 英文摘要 | The high-mass X-ray binary 4U 1901+03 is reported to have a pulse profile evolving with the X-ray luminosity and energy during its outburst in 2003 February-July: the pulse peak changed from double to single along with the decreasing luminosity. We have carried out a detailed analysis on the contemporary phase-resolved energy spectrum of 4U 1901+03 as observed by the Rossi X-ray Timing Explorer. We find that the spectra are phase dependent. At the beginning of the outburst, the maximum of the optical depth for Compton scattering is near the major phase peak. During the decay of the outburst, the optical depth has the maximum away from the main peak of the pulse profile. For each observation, Fe K alpha emission line is detected in the phase-resolved spectra, and its flux is constant across the pulse phases. This suggests that the origin of the Fe emission is from the accretion disk, not the surface of the neutron star. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000272465400016 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/8360]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Ctr Particle Astrophys, Inst High Energy Phys, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 3.Tsinghua Univ, Ctr Astrophys, Beijing 100084, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lei, Ya-Juan,Chen, Wei,Qu, Jin-Lu,et al. PHASE-RESOLVED SPECTRAL ANALYSIS OF 4U 1901+03 DURING ITS OUTBURST[J]. ASTROPHYSICAL JOURNAL,2009,707(2):1016-1022. |
| APA | Lei, Ya-Juan.,Chen, Wei.,Qu, Jin-Lu.,Song, Li-Ming.,Zhang, Shu.,...&Li, Ti-Pei.(2009).PHASE-RESOLVED SPECTRAL ANALYSIS OF 4U 1901+03 DURING ITS OUTBURST.ASTROPHYSICAL JOURNAL,707(2),1016-1022. |
| MLA | Lei, Ya-Juan,et al."PHASE-RESOLVED SPECTRAL ANALYSIS OF 4U 1901+03 DURING ITS OUTBURST".ASTROPHYSICAL JOURNAL 707.2(2009):1016-1022. |
入库方式： OAI收割
来源：国家天文台
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