a Study of the Populations of Faint X-Ray Sources in Globular Clusters

Details a Study of the Populations of Faint X-Ray Sources in Globular Clusters a Study of the Populations of Faint X-Ray Sources in Globular Clusters

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop..127l&link_type=abstract

Chandra Proposal ID #01910675

Physics

Chandra Proposal Id #01910675

Scientific paper

We have known for 15 years that globular clusters contain a population of faint (Lx < 10^35 erg/sec) X-ray sources in addition to a population of very bright low-mass X-ray binaries. Only the most luminous members of this faint source population have so far been detected, however, and their nature is still unclear. We propose a deep survey of 12 globular clusters to study this population at detection thresholds one to three orders of magnitude below those achieved previously. This will allow us to detect substantial numbers of binary systems of various kinds throughout the clusters. AXAF is ideally suited for this investigation: its combination of sensitivity and high spatial resolution is essential for studying these faint sources in their crowded environs.

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