Astronomy and Astrophysics – Astronomy
Scientific paper
Nov 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006atel..937....1c&link_type=abstract
The Astronomer's Telegram, #937
Astronomy and Astrophysics
Astronomy
X-Ray, Binaries, Black Holes, Neutron Stars
Scientific paper
Using radial velocity curves from time resolved spectroscopy Geier et al. (2006, astro-ph/0610467) recently identified 4 subluminous B (sdB) stars in close binaries with possible neutron star or black holes. However, none of these sources have any X-ray counterparts in the ROSAT all sky survey, as would be expected if the sources were actively accreting low-mass X-ray binaries. We searched for the X-ray counterpart of one of the sources, HE 0532-4503 with a ~1 ksec Swift XRT observation.
Cackett Edward M.
Miller John Mcl.
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