Physics
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cfdd.confe...4t&link_type=abstract
Chandra's First Decade of Discovery, Proceedings of the conference held 22-25 September, 2009 in Boston, MA. Edited by Scott Wo
Physics
Stars And Star Formation
Scientific paper
A recent Chandra VLP surveyed 1.4 square degrees of the Great Nebula in Carina with 22 ˜60ks ACIS-I pointings, providing remarkable new views of this massive star-forming complex. We will explore some early results of this survey, highlighting physical processes that characterize the life of this ``cluster of clusters,'' an example of the fundamental building blocks of starburst galaxies. This Chandra survey reveals over 14,000 X-ray point sources in Carina; most are pre-main sequence stars accompanying >100 massive stars powering this extensive HII region complex. This X-ray-selected sample of young stars can be used to study disk frequency and evolution in the proximity of massive stars. Some of these massive stars are hard X-ray emitters; this may be a new indicator of close binarity or magnetic fields. Carina is suffused by diffuse X-ray structures, signatures of multi-million-degree plasmas created by fast O-star winds or by the deaths of massive stars that stayed close to their birthplaces, exploding as cavity supernovae within the proto-superbubble that the Carina complex is creating.
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