Finding Black Holes and Understanding Star Cluster Evolution with Chandra

Details Finding Black Holes and Understanding Star Cluster Evolution with Chandra Finding Black Holes and Understanding Star Cluster Evolution with Chandra

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1178p&link_type=abstract

Chandra Proposal ID #04400555

Physics

Chandra Proposal Id #04400555

Scientific paper

The Large Magellanic Cloud contains an interesting population of star clusters with a range in ages (~< 100 Myr), richnesses (10^4 to 10^5 stars), and densities (up to 10^4 star/pc^3) unlike any clusters in the Milky Way. Recent theoretical models predict these clusters to be unusually rich in black-hole X-ray binaries (BHXBs); they are at an age when BHs have formed but have not yet been expelled. We propose to observe six such clusters (in 4 pointings of 30 ks each) to a detection threshold of 1.5 times 10^32 erg/s (a sensitivity about 1000 times better than current limits). The wide parameter ranges of the selected clusters will allow us to put important constraints on dynamical models of star clusters and on the theoretical predictions concerning the formation and evolution of BHXBs.

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