Searching for X-Ray Transients in M31 with Chandra and HST

Details Searching for X-Ray Transients in M31 with Chandra and HST Searching for X-Ray Transients in M31 with Chandra and HST

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001cxo..prop..883g&link_type=abstract

Chandra Proposal ID #03600281

Other

Chandra Proposal Id #03600281

Scientific paper

We propose observations to allow 6 X-ray Transients (XRT) to be studied in M31. The x-ray properties of these XRT (spectra, variability) will allow us to determine whether the accreting object is a black hole or a neutron star. HST observations of these XRT will determine the nature of the secondary star: massive stars will show little (<2 mag) change in their UV luminosities during outbursts, while low-mass stars will show large (>5 mag) changes in their UV luminosities. This dataset will allow the first detailed study of evolution of black hole and neutron star binaries in an external galaxy. As many of the XRT in the Milky Way contain black hole primaries, we expect that a major result will be an understanding of the formation of stellar mass black holes in another galaxy.

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