X-ray observations of SS Cygni

Details X-ray observations of SS Cygni X-ray observations of SS Cygni

Jan 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979mnras.186..233r&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 186, Jan. 1979, p. 233-244. Research supported by the Science Research

Astronomy and Astrophysics

Astronomy

48

Ariel 5 Satellite, Magnetic Stars, Spaceborne Astronomy, Subdwarf Stars, X Ray Sources, Black Body Radiation, Electrodeposition, Mass Transfer, Optical Emission Spectroscopy, Sky Surveys (Astronomy), X Ray Irradiation

Scientific paper

Extended observations of SS Cygni by the Ariel V Sky Survey Instrument confirm it as a hard X-ray source on the basis of an improved X-ray position and an inverse correlation between the X-ray and optical intensities. Interpretation of the X-rays with energies above 2 keV as due to radial inflow on to a magnetized white dwarf from a disrupted accretion disk allows estimates to be made of the magnetic field (approximately 10 to the sixth G) and the accretion rate (increasing from 4 x 10 to the sixteenth to approximately 2 x 10 to the nineteenth g/s) during an optical outburst.

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