arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1111.0715astro-ph.HE
收藏

Be/X射线双星A0535 +26/ HD245770的离散质量喷射

Discrete Mass Ejections from the Be/X-ray Binary A0535+26/HD245770

Jingzhi Yan, Hui Li, Qingzhong Liu

摘要:

介绍了Be/X射线双星A0535+26在1992 - 2010年的长期光谱观测结果。结合公开的V波段测光资料,我们发现每一次X射线巨爆发都发生在光学亮度的衰减阶段。在我们2009年的观测中,光学亮度和H $α$强度之间的反相关表明,在2009年的巨型X射线爆发之前发生了一次质量喷射事件,这可能导致在盘的内部形成一个低密度区域。1996年9月前后观测到的类似反相关表明发生了物质抛射,这可能引发了随后的A0535+26盘丢失事件。

英文摘要:

We present the long-term optical spectroscopic observations on the Be/X-ray binary A0535+26 from 1992 to 2010. Combining with the public V-band photometric data, we find that each giant X-ray outburst occurred in a fading phase of the optical brightness. The anti-correlation between the optical brightness and the H$α$ intensity during our 2009 observations indicates a mass ejection event had taken place before the 2009 giant X-ray outburst, which might cause the formation of a low-density region in the inner part of the disk. The similar anti-correlation observed around 1996 September indicates the occurrence of the mass ejection, which might trigger the subsequent disk loss event in A0535+26.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑