2001: a Space Census -- Supersoft X-Ray Sources and Other X-Ray Sources in M31

Details 2001: a Space Census -- Supersoft X-Ray Sources and Other X-Ray Sources in M31 2001: a Space Census -- Supersoft X-Ray Sources and Other X-Ray Sources in M31

Sep 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000cxo..prop..644d&link_type=abstract

Chandra Proposal ID #02600733

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Chandra Proposal Id #02600733

Scientific paper

We propose ACIS-S observations to carry out a deep census of X-ray sources in 3 regions of M31. The fields sample young and old stellar populations, as well as 30-40 globular clusters; they include 5 known luminous supersoft X-ray sources (SSSs). We will study known X-ray sources and will discover several hundred new sources, including 20-50 SSSs. We will (1) probe the environmental dependence of X-ray binary populations, (2) quantify the contribution of M31's X-ray sources (SSSs and the soft components of other sources) to high-state ionization of the ISM and IGM, and (3) investigate the X-ray properties of M31's globular clusters, including variations of flux and spectra with distance from the cluster cores. This work provides a basis for studies of more distant galaxies.

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