A search for X-rays from runaway stars

Details A search for X-rays from runaway stars A search for X-rays from runaway stars

Sep 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...272..219k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 272, Sept. 1, 1983, p. 219-222.

Astronomy and Astrophysics

Astronomy

18

Binary Stars, Gravitational Collapse, Supernova Remnants, X Ray Astronomy, X Ray Stars, B Stars, Early Stars, O Stars

Scientific paper

Enhanced X-ray emission from an early-type runaway star would be direct evidence for the presence of a collapsed companion, and thus for its origin as the result of a supernova explosion in a massive binary. To test this idea, measurements of X-ray fluxes in the 0.5-3 keV energy range from nine O and B type runaway stars were made with the Einstein Observatory. In each case, the X-ray luminosity observed does not exceed that expected from a normal OB star. Therefore we conclude that, if the runaway stars have collapsed companions, the separations of the components must be much greater than those in normal OB binaries.

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