Optical variability of the X-ray source 1E1615.0 + 3114

Details Optical variability of the X-ray source 1E1615.0 + 3114 Optical variability of the X-ray source 1E1615.0 + 3114

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992sval...18..172s&link_type=abstract

Soviet Astronomy Letters, Vol. 18, p. 172; Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 18, no. 5, May 1992, p. 431-

Astronomy and Astrophysics

Astronomy

Binary Stars, Light Curve, Ubv Spectra, X Ray Sources, Electrophotometry, Photographic Plates, Variability

Scientific paper

The light variability of the X-ray source has been studied using photographic plates and UBV electrophotometry. An improved value of the orbital period has been found, which is consistent with all the light fadings during 1909-1991. It is suggested on the basis of photographic observations that the depth of the minimum varies from 0.4 to 0.1 m. The position of the object on the two-color diagram is shown.

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