ASAS photometry of ROSAT sources. II.

We present a catalog of 307 optical counterparts of the bright ROSAT X-ray sources, identified with the ASAS North survey data and showing periodic brightness variations. They...本研究构建了307个亮ROSAT X射线源的光学对应体目录，这些对应体通过ASAS North巡天数据识别得到，并表现出周期性亮度变化。