Spectra and Mass Measure for the Ultracompact Binary in NGC 6624

Details Spectra and Mass Measure for the Ultracompact Binary in NGC 6624 Spectra and Mass Measure for the Ultracompact Binary in NGC 6624

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop..246m&link_type=abstract

Chandra Proposal ID #01400076

Computer Science

Chandra Proposal Id #01400076

Scientific paper

We propose to obtain HRC-S LETG spectra of the shortest period binary system know: the11 min WD-NS binary in the globular cluster NGC 6624. This prototype for the double degenerate binaries is bright enough to obtain high S/N spectra with the LETG such that phase-resolved spectra can neasure the abundances in this extreme example of stellar/binary evolution as well as provice the first measure of a NS mass in an actively accreting LMXB in a globular. Comparison with statistical measures will allow constraints on both cluster potential and formation and evolution of thsi exotic system.

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