X-RAY POINT SOURCES IN THE SOMBRERO GALAXY: VERY SOFT SOURCES, THE GLOBULAR CLUSTER/LOW-MASS X-RAY BINARY CONNECTION, AND AN OVERVIEW

@article{Stefano2003XRAYPS,
  title={X-RAY POINT SOURCES IN THE SOMBRERO GALAXY: VERY SOFT SOURCES, THE GLOBULAR CLUSTER/LOW-MASS X-RAY BINARY CONNECTION, AND AN OVERVIEW},
  author={Rosanne Di Stefano and Albert K. H. Kong and Marcel L. Vandalfsen and William E. Harris and Stephen S. Murray and Kisha M. Delain},
  journal={The Astrophysical Journal},
  year={2003},
  volume={599},
  pages={1067-1081}
}
We report on the population of point sources discovered during an 18.5 ks Chandra ACIS-S observation of the Sombrero galaxy. We present the luminosity function and the spectra of the six brightest sources, consider correlations with globular clusters (GCs) and with planetary nebulae, and study the galaxy's population of very soft sources. We detected 122 sources. Twenty-two sources are identified as very soft; of these, five appear to be classical luminous supersoft X-ray sources (SSSs), while… 
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