U, B, V, R photometry of HZ Herculis during the 1977 X-ray program

Details U, B, V, R photometry of HZ Herculis during the 1977 X-ray program U, B, V, R photometry of HZ Herculis during the 1977 X-ray program

Aug 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978sval....4..191k&link_type=abstract

(Pis'ma v Astronomicheskii Zhurnal, vol. 4, Aug. 1978, p. 356-361.) Soviet Astronomy Letters, vol. 4, July-Aug. 1978, p. 191-194

Astronomy and Astrophysics

Astronomy

13

Eclipsing Binary Stars, Neutron Stars, Pulsars, Stellar Spectrophotometry, Ubv Spectra, X Ray Sources, Light Curve, Stellar Mass Accretion, White Dwarf Stars

Scientific paper

On 20 nights from July 24 to August 21, 1977, 115 photoelectric U, B, V,
R measurements of HZ Her (Her X-1) were made. Minimum light is covered
by 45 measurements on 4 nights, enabling parameters to be determined for
the components of the binary system. The accretion disk is markedly
asymmetric. The light curve is suspected of peculiarity at minimum.

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