Supersoft X-ray Sources in M31: I. A Chandra Survey and an Extension to Quasisoft Sources

R. Di Stefano, A. K. H. Kong, J. Greiner +9

We report on very soft X-ray sources (VSSs) in M31. In a survey which was most sensitive to soft sources in four 8'x8' regions covered by Chandra's ACIS-S S3 CCD, we find 33 VSSs t…