U,B,V photometry of the X-ray binary HD 153919 = 4U 1700-37

Details U,B,V photometry of the X-ray binary HD 153919 = 4U 1700-37 U,B,V photometry of the X-ray binary HD 153919 = 4U 1700-37

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982sva....26..554c&link_type=abstract

(Astronomicheskii Zhurnal, vol. 59, Sept.-Oct. 1982, p. 918-924) Soviet Astronomy (ISSN 0038-5301), vol. 26, Sept.-Oct. 1982, p.

Astronomy and Astrophysics

Astronomy

1

Eclipsing Binary Stars, Stellar Spectrophotometry, Variable Stars, X Ray Sources, Electrophotometry, Light Curve, O Stars, Ubv Spectra

Scientific paper

Photoelectric UBV photometry of HD 153919 was performed at the Siding Spring Observatory of the Australian National University during March-June 1980. The light curves show a local minimum approximataely 0.04 m deep at phases phi = 0.55-0.7, evidently due to occultation of the O6f star by gas streams and the accretion structure around the relativistic object. VB pulsations of 0.012-0.007 m amplitude and 85-94 min period at phi = 0.5-0.6 are suspected, in accordance with Kruszewski's (1978) finding that the optical pulsation period is growing shorter.

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