A CHANDRA OBSERVATION OF THE OBSCURED STAR-FORMING COMPLEX W40

@article{Kuhn2010ACO,
  title={A CHANDRA OBSERVATION OF THE OBSCURED STAR-FORMING COMPLEX W40},
  author={Michael A. Kuhn and Konstantin V. Getman and Eric D. Feigelson and Bo Reipurth and Steven A. Rodney and Gordon P. Garmire},
  journal={The Astrophysical Journal},
  year={2010},
  volume={725},
  pages={2485 - 2506}
}
The young stellar cluster illuminating the W40 H ii region, one of the nearest massive star-forming regions, has been observed with the ACIS detector on board the Chandra X-ray Observatory. Due to its high obscuration, this is a poorly studied stellar cluster with only a handful of bright stars visible in the optical band, including three OB stars identified as primary excitation sources. We detect 225 X-ray sources, of which 85% are confidently identified as young stellar members of the region… 
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