56 citations · 56 across the 1 of their papers we have counts for
1 paper
A. Ptak, E. Colbert, R. Van der Marel +3
We present a systematic analysis of archival HST WFPC2 ``Association'' data sets that correlate with the Chandra positions of a set of 44 ultra-luminous X-ray sources (ULXs) of nea…