We investigated the X-ray emission from young stars and brown dwarfs in the {sigma} Orionis cluster ({tau}=~3Ma, d=~385pc) and its relation to mass, the presence of circumstellar discs, and separation to the cluster centre by taking advantage of the superb spatial resolution of the Chandra X-ray Observatory.
Cone search capability for table J/A+A/521/A45/tablec1 (HRC-I/Chandra X-ray detections with significance over 5.1.)
Cone search capability for table J/A+A/521/A45/tablec3 (A reappraisal to the X-ray sources near {sigma} Ori in Wolk (1996, Ph.D. Thesis))