OSO-8 X-ray observations of AM Herculis

Details OSO-8 X-ray observations of AM Herculis OSO-8 X-ray observations of AM Herculis

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977stin...7727050s&link_type=abstract

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Astronomy and Astrophysics

Astronomy

Binary Stars, Hercules Nova, Oso-8, Stellar Radiation, X Ray Astronomy, X Ray Spectra, Bremsstrahlung, Compton Effect, White Dwarf Stars, X Ray Sources

Scientific paper

Hard X-ray observations of the binary system AM Her were coincident with soft X-ray and ground-based optical measurements. In the 2-60 KeV band, variability was detected with an eclipse during phases 0.5 to 0.7 with respect to the 0. d 12892 period optical minima, synchronous with the known soft X-ray eclipse. The 2-60 KeV uneclipsed flux was 9.5 x 10 to the minus 10th power erg sq cm/sec, of which 86% lies above 10 keV. Thus AM Her contains a hard source located near the similarly eclipsed soft X-ray source. The X-ray data are interpreted in terms of thermal bremsstrahlung from accretion onto a white dwarf.

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