An additional H alpha emission component in LSI+61 degrees 303: Further evidence for the H alpha emission related to the neutron star
文献类型：期刊论文
| 作者 | Liu, QZ; Yan, JZ
|
| 刊名 | NEW ASTRONOMY
 |
| 出版日期 | 2005-11-01 |
| 卷号 | 11期号:2页码:130-137 |
| 关键词 | stars individual LSI+61 degrees 303-X-rays stars-stars emission-line Be stars binaries close |
| ISSN号 | 1384-1076 |
| 英文摘要 | A long-term program has been established since 1992 to monitor more than a dozen of observable X-ray binaries. We present the long-term spectroscopic results of the Be/X-ray binary, LSI+61 degrees 303. The Hot emission line, usually observed as a double-peaked profile with a dominant red peak, varies noticeably during our program. While the blue peak of the Hot emission line decreases gradually, the red peak increases considerably in 2002 October observational run and remains relatively unchanged in 2004 September run. We attribute these variations to the asymmetric perturbation in the Be envelope. Finally, we report on the discovery of a two-component structure in the Ha emission line when close to the apastron. In addition to the original double-peaked Ha emission component, an additional emission component emerges at the center part of the emission line, which could originate in the accretion disc around the neutron star. (c) 2005 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | LS-I +61-DEGREES-303 ; X-RAY BINARIES ; RADIO OBSERVATIONS ; LIGHT-CURVE ; I+61-DEGREES-303 ; &61-DEGREES-303 ; VARIABILITY ; PERIODICITY ; MODULATION ; JET |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000233303000005 |
| 公开日期 | 2012-03-07 |
| 源URL | [http://159.226.72.40/handle/332002/4178]  |
| 专题 | 紫金山天文台_宇宙伽马暴、中子星及相关物理研究团组 |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, QZ,Yan, JZ. An additional H alpha emission component in LSI+61 degrees 303: Further evidence for the H alpha emission related to the neutron star[J]. NEW ASTRONOMY,2005,11(2):130-137. |
| APA | Liu, QZ,&Yan, JZ.(2005).An additional H alpha emission component in LSI+61 degrees 303: Further evidence for the H alpha emission related to the neutron star.NEW ASTRONOMY,11(2),130-137. |
| MLA | Liu, QZ,et al."An additional H alpha emission component in LSI+61 degrees 303: Further evidence for the H alpha emission related to the neutron star".NEW ASTRONOMY 11.2(2005):130-137. |
入库方式： OAI收割
来源：紫金山天文台
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