论文标题
Magellanic Bridge Source RX J0209.6-7427的主要光学和X射线爆发
A major optical & X-ray outburst from the Magellanic Bridge source RX J0209.6-7427
论文作者
论文摘要
RX J0209.6-7427是麦哲伦桥的X射线源，该桥是在1993年首次检测到的，但直到2019年才再次被发现。它已被确定为BE/X射线二进制级别的成员，该类别是一类对象，这些对象被很好地确定为明亮的，通常是不可预测的瞬态。这种系统在桥梁中很少知道，这可能是因为它们位于X射线望远镜最常见的区域之外。无论桥梁中稀疏数量的系统的原因是什么，它们都可以提供有用的工具来尝试了解两种麦哲伦云的潮汐动力学结果。在本文中，借助最新爆发期间获得的新数据来探讨该对象的性质。特别是，提出了对应方的第一个光谱，以帮助对星进行分类，并在几年内测量Balmer发射线的测量值用于研究Centellar磁盘的大小和结构的变化。
RX J0209.6-7427 is an X-ray source in the Magellanic Bridge that was first detected in 1993, but not seen again till 2019. It has been identified as a member of the Be/X-ray binary class, a category of objects that are well established as bright, often-unpredictable transients. Such systems are rarely known in the Bridge, possibly because they lie outside the area most commonly studied by X-ray telescopes. Whatever the reason for the sparse number of such systems in the Bridge, they can provide useful tools for trying to understand the result of the tidal dynamics of the two Magellanic Clouds. In this paper the nature of the object is explored with the help of new data obtained during the latest outburst. In particular, the first optical spectrum of the counterpart is presented to help classify the star, plus measurements of the Balmer emission lines over several years are used to investigate changes in the size and structure of the circumstellar disk.
