X-ray sources in the globular cluster 47 Tuc

We have detected 300 X-ray sources within the half-mass radius (2.79') of the globular cluster 47 Tucanae in a deep (281ks) Chandra exposure. We perform photometry and simple...我们利用时长281千秒的深度钱德拉（Chandra）X射线观测曝光数据，在球状星团杜鹃座47（47 Tucanae）的半质量半径（2.79角分）范围内探测到300个X射线源。我们开展了测光分析与简易……