ROSAT All-Sky Survey and Sloan Digital Sky Survey DR7 Galaxy Clusters

The authors use ROSAT All-Sky Survey (RASS) broad-band X-ray images and the optical clusters identified from the Sloan Digital Sky Survey Data Release 7 (SDSS DR7) to estimate...研究人员采用伦琴卫星全天巡天（ROSAT All-Sky Survey, RASS）的宽带X射线图像，以及从斯隆数字巡天第七次数据发布（Sloan Digital Sky Survey Data Release 7, SDSS DR7）中识别得到的光学星系团，来开展估算工作