X-ray emission from extremely young stellar objects

Thomas Preibisch and Ralph Neuhäuser

Contribution at the symposium Highlights in X-ray Astronomy

Max-Planck-Institut für extraterrestrische Physik, Garching, June 1998

MPE Report, in press (1999)


We summarize the recent detections of strong X-ray emission from highly obscured, optically invisible young stellar objects in several star forming regions. We discuss the X-ray properties of these objects, the origin of their strong X-ray emission, and the implications on the star formation process and the evolution of the protoplanetary disk.

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