X-Ray-emitting Young Stars in the Orion Nebula

  title={X-Ray-emitting Young Stars in the Orion Nebula},
  author={Eric D. Feigelson and Patrick S. Broos and James A. Gaffney III and Gordon P. Garmire and L. A. Hillenbrand and Steven H. Pravdo and Leisa K. Townsley and Yohko Tsuboi},
  journal={The Astrophysical Journal},
  pages={258 - 292}
The Orion Nebula Cluster and the molecular cloud in its vicinity have been observed with the ACIS-I detector on board the Chandra X-ray Observatory with 23 hr exposure in two observations. We detect 1075 X-ray sources, most with subarcsecond positional accuracy. Ninety-one percent of the sources are spatially associated with known stellar members of the cluster, and an additional 7% are newly identified deeply embedded cloud members. This provides the largest X-ray study of a pre-main-sequence… 

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