Resolving the Compact Binaries in NGC 6397

Details Resolving the Compact Binaries in NGC 6397 Resolving the Compact Binaries in NGC 6397

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop..790m&link_type=abstract

Chandra Proposal ID #03300064

Computer Science

Chandra Proposal Id #03300064

Scientific paper

We propose to obtain two moderately deep ACIS-S observations (25ksec each) of the globular cluster NGC 6397 in order to resolve and identify the population of compact binaries we have discovered in our cycle 1 ACIS-I observation. Each exposure will approximately match the counts obtained for each of the 14 sources found within 10arcsec of the cluster center, allowing the spectral variability to be measured for the bright sources (>500 cts) and total flux variability for the faintest (3ct) sources. This will enable the population of millisecond pulsars (MSPs) to be distinguished from the cataclysmic variables (CVs) and quiescent low mass x-ray binaries (qLMXBs), and will also enable a deep search for flaring main sequence binaries. GTO Priority "A"

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