Physics
Scientific paper
Mar 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003xmm..prop...21r&link_type=abstract
XMM-Newton Proposal ID #02004504
Physics
Cyg Ob2 #8, Cyg Ob2 #8, Cyg Ob2 #8, Cyg Ob2 #8, Xmm-Newton Proposal 02004504
Scientific paper
We propose to observe the core of the extremely young cluster Cyg OB2 with XMM. This cluster contains 3 very massive X-ray bright O-type stars known to display a variable non-thermal radio emission. By simultaneously monitoring these stars with XMM, the VLA and optical spectroscopy, and by combining these data with forthcoming INTEGRAL data we will be able to obtain unprecedented information on the still mysterious origin of relativistic particles in the stellar winds of early-type stars. The requested XMM observations will further provide the deepest yet X-ray survey of this region which is believed to harbour a very young globular cluster containing more than 100 O-stars and will therefore provide extremely interesting information on the earliest phases of star formation in high-density clusters.
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