Hot subdwarfs with degenerate companions

Details Hot subdwarfs with degenerate companions Hot subdwarfs with degenerate companions

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010xmm..prop...51m&link_type=abstract

XMM-Newton Proposal ID #06712001

Other

Stars, White Dwarfs, Solar System, Pg 1101+249

Scientific paper

Stellar evolutionary models predict that most of the hot sub-dwarfs in close binary systems have white dwarf companions. In a few cases even more massive compact objects (neutron stars or black holes) are suggested by the optical mass functions. The X-ray emission expected from accretion of the sub-dwarf's wind can reveal the nature of the compact companions and be used to derive other important information on these post-common envelope systems, as recently demonstrated by the discovery of a massive WD in HD 49798. We selected 3 promising targets from a sample of hot subdwarfs suspected to have degenerate companions. This proposal was accepted in AO9 with C priority.

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