IHEP OpenIR  > 粒子天体物理中心
X-ray spectroscopy of dips of Cir X-1
Lei YJ(雷亚娟); Lu FJ(卢方军); Qu JL(屈进禄); Song LM(宋黎明); Lei, YJ; Lu, FJ; Qu, JL; Song, LM; Zhang, CM
2007
发表期刊CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
卷号7期号:5页码:693-704
通讯作者Chinese Acad Sci, Inst High Energy Phys, Lab Particle Astrophys, Beijing 100049, Peoples R China ; Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
摘要We present X-ray spectral analyses of the low-mass X-ray binary Cir X-1 during X-ray dips, using the Rossi X-ray Timing Explorer (RXTE) data. Each dip was divided into several segments, and the spectrum of each segment was fitted with a three-component blackbody model, in which the first two components are affected by partial covering and the third one is unaffected. A Gaussian emission line is also included in the spectral model to represent the Fe K alpha line at similar to 6.4keV. The fitted temperatures of the two partially covered components are about 2 keV and I keV, while the uncovered component has a temperature of similar to 0.5-0.6keV. The equivalent blackbody emission radius of the hottest component is the smallest and that of the coolest component is the largest. During the dips the fluxes of the two hot components are linearly correlated, while that of the third component does not show any significant variation. The Fe line flux remains constant, within the errors, during the short dips. However, during the long dips the line flux varies significantly and is positively correlated with the fluxes of the two hot components. These results suggest: (1) that the temperature of the X-ray emitting region decreases with radius, (2) that the Fe Ka line emitting region is close to the hot continuum emitting region, and (3) that the size of the Fe line emitting region is larger than that of the obscuring matter causing the short dips but smaller than the region of that causing the long dips.
文章类型Article
关键词stars : individual (Circinus X-1) stars : neutron X-rays : stars
学科领域Astronomy & Astrophysics
DOI10.1088/1009-9271/7/5/10
研究领域[WOS]Astronomy & Astrophysics
URL查看原文
语种英语
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000250426300010
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/238287
专题粒子天体物理中心
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
Lei YJ,Lu FJ,Qu JL,et al. X-ray spectroscopy of dips of Cir X-1[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2007,7(5):693-704.
APA 雷亚娟.,卢方军.,屈进禄.,宋黎明.,Lei, YJ.,...&Zhang, CM.(2007).X-ray spectroscopy of dips of Cir X-1.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,7(5),693-704.
MLA 雷亚娟,et al."X-ray spectroscopy of dips of Cir X-1".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 7.5(2007):693-704.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
5147.pdf(306KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[雷亚娟]的文章
[卢方军]的文章
[屈进禄]的文章
百度学术
百度学术中相似的文章
[雷亚娟]的文章
[卢方军]的文章
[屈进禄]的文章
必应学术
必应学术中相似的文章
[雷亚娟]的文章
[卢方军]的文章
[屈进禄]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。