IHEP OpenIR  > 粒子天体物理中心
Recovery of the orbital parameters and pulse evolution of V0332+53 during a huge outburst
Zhang S(张澍); Qu JL(屈进禄); Song LM(宋黎明); Zhang, S; Qu, JL; Song, LM; Torres, DF
2005
发表期刊ASTROPHYSICAL JOURNAL
卷号630期号:1页码:L65-L68
通讯作者Inst High Energy Phys, Lab Particle Astrophys, Beijing 100049, Peoples R China ; Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA
摘要The high- mass X-ray binary V0332+53 became active at the end of 2004, and the outburst was observed in hard X-rays by RXTE and INTEGRAL. Based on these hard X-ray observations, we measure the orbital parameters by fitting the Doppler-shifted spin periods. The derived orbital period and eccentricity are consistent with those obtained by Stella et al. from EXOSAT observations, whereas the projected semimajor axis and the periastron longitude are found to have changed from 48 +/- 4 to 86(-10)(+6) lt-s and from 313 degrees +/- 10 to 283 degrees +/- 14 degrees, respectively. This would indicate an angular speed of =1 degrees.5 +/- 0 degrees.8 yr(-1) for the rotation of the orbit over the past 21 years. The periastron passage time of MJD 53,367 +/- 1 is just around the time when the intensity reached maximum, and an orbital period earlier is the time when the outburst started. This correlation resembles the behavior of a type I outburst. During outburst, the source spun up at a rate of 8.01(-1.14)(+1.00) s day(-1). The evolution of the pulse profile is highly intensity dependent. The separation of double pulses remained almost constant (similar to 0.47) when the source was bright and dropped to 0.37 within 3 days as the source became weaker. The pulse evolution of V0332+53 may be correlated with a change in dominance of the emission between fan-beam and pencil-beam mechanisms.
文章类型Article
关键词stars : individual (V0332+53) X-rays : binaries
学科领域Astronomy & Astrophysics
DOI10.1086/462415
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:000231440000017
引用统计
被引频次:9[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/311005/240287
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
Zhang S,Qu JL,Song LM,et al. Recovery of the orbital parameters and pulse evolution of V0332+53 during a huge outburst[J]. ASTROPHYSICAL JOURNAL,2005,630(1):L65-L68.
APA 张澍.,屈进禄.,宋黎明.,Zhang, S.,Qu, JL.,...&Torres, DF.(2005).Recovery of the orbital parameters and pulse evolution of V0332+53 during a huge outburst.ASTROPHYSICAL JOURNAL,630(1),L65-L68.
MLA 张澍,et al."Recovery of the orbital parameters and pulse evolution of V0332+53 during a huge outburst".ASTROPHYSICAL JOURNAL 630.1(2005):L65-L68.
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
7965.pdf(93KB)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
[张澍]的文章
[屈进禄]的文章
[宋黎明]的文章
百度学术
百度学术中相似的文章
[张澍]的文章
[屈进禄]的文章
[宋黎明]的文章
必应学术
必应学术中相似的文章
[张澍]的文章
[屈进禄]的文章
[宋黎明]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。