Abstract
view Abstract Citations (88) References (25) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Soft X-ray pulsations from SS Cyg. Cordova, F. A. ; Chester, T. J. ; Tuohy, I. R. ; Garmire, G. P. Abstract Pulsed soft X-rays (0.1 to 0.5 keV) with a period of 9 sec and a pulsed fraction that varies between 0 and 100% were detected from the dwarf nova SS Cygni at the peak of an optical outburst. This detection confirms for the first time the supposed high energy origin of optical pulsations seen in erupting dwarf novae. The pulse shape is remarkably sinusoidal for such a large-amplitude oscillation. The X-ray pulsation observed in this outburst is not coherent, in contrast to previous claims for the related optical oscillations. Publication: The Astrophysical Journal Pub Date: January 1980 DOI: 10.1086/157621 Bibcode: 1980ApJ...235..163C Keywords: Binary Stars; Dwarf Stars; Novae; Pulsed Radiation; Stellar Spectrophotometry; X Ray Sources; Black Body Radiation; Boundary Layer Stability; Heao; Light Curve; Pulse Duration; Stellar Luminosity; Stellar Models; X Ray Spectra; Astrophysics full text sources ADS | data products SIMBAD (2)
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