The nature of GLIMPSE 81: a star cluster to rival Westerlund 1?

Details The nature of GLIMPSE 81: a star cluster to rival Westerlund 1? The nature of GLIMPSE 81: a star cluster to rival Westerlund 1?

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cxo..prop.2772f&link_type=abstract

Chandra proposal ID #11200418

Physics

Scientific paper

Young Massive Clusters (YMCs) are the ideal natural laboratory in which to probe the evolution of very massive stars through to supernova (SN) and beyond. We have identified one such cluster, GLIMPSE 81, which is rich in massive stars and which has been shown by XMM to emit hard X-rays. Here, we will use Chandra to resolve this emission and determine the relative contributions of massive binaries, post-SN objects (e.g. neutron stars), accreting relativistic binaries, and the diffuse emission of recent SNe. Ultimately, we will test the results from a similar study of Westerlund 1 that massive stars in clusters have binary fractions close to 100%. Further, we will use GLIMPSE 81 to provide links between massive stars and post-SN remnants, such as that of the nearby TeV source HESS~J1640.

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