Some features of the photometric behavior of HZ Her/Her X-1 - Twisted-disk effects

Details Some features of the photometric behavior of HZ Her/Her X-1 - Twisted-disk effects Some features of the photometric behavior of HZ Her/Her X-1 - Twisted-disk effects

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pazh...16..625v&link_type=abstract

Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 16, July 1990, p. 625-634. In Russian. In Russian. In Russian.

Astronomy and Astrophysics

Astronomy

2

Astronomical Photometry, Eclipsing Binary Stars, X Ray Stars, Accretion Disks, Electrophotometers, Light Curve, Ultraviolet Astronomy

Scientific paper

Analysis of UBV observations of the X-ray binary HZ Her/Her X-1 during 1972-1988 is performed. It is shown that the orbital light curve has been stable over these 16 years. It is assumed that the observed small deviations from the mean orbital curve may be connected with geometrical effects and can be explained in the framework of the twisted precessing accretion disk model.

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