UBVR observation of V1357 CYG = CYG X-1. Search of the optical radiation of the accretion disk

Details UBVR observation of V1357 CYG = CYG X-1. Search of the optical radiation of the accretion disk UBVR observation of V1357 CYG = CYG X-1. Search of the optical radiation of the accretion disk

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979stin...8016988s&link_type=abstract

"UBVR observation of V1357 Cyg = Cyg X-1. Search of the optical radiation of the accretion disk Transl. into ENGLISH of "UBVR

Computer Science

Light Emission, Stellar Mass Accretion, Stellar Radiation, X Ray Sources, Eclipses, Light Curve, Stellar Spectra, Ultraviolet Radiation, X Rays

Scientific paper

Data from 30 nights of V 1357 Cyg observations in July, August, and September of 1977 are presented. The contribution of the disk to the optic brightness of the system is computed with regard for the heating of its surface by ultraviolet radiation from V 1357 Cyg and X-ray radiation from Cyg X-1. The disk radiation explains the irregular variability in the system brightness. The possibility of the eclipse of the star by the disk and the disk by the star is discussed.

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