[0904.2772] X-ray Sources and Their Optical Counterparts in the Galactic Globular Cluster M12 (NGC 6218) →
Ting-Ni Lu et al. :: We study a Chandra X-ray Observatory ACIS-S observation of the Galactic globular cluster M12. With a 26 ks exposure time, we detect 6 X-ray sources inside the half-mass radius (2’.16) and two of them are inside the core radius (0’.72) of the cluster.
