Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986mnras.223..595m&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 223, Dec. 1, 1986, p. 595-606. SERC-supported research.
Astronomy and Astrophysics
Astronomy
12
Eclipsing Binary Stars, Late Stars, Stellar Spectra, Stellar Spectrophotometry, Ephemerides, Light Curve, Radial Velocity, Spectrum Analysis
Scientific paper
Reticon spectroscopy and BVRIc photometry are presented for the late-type eclipsing binary RV Corvi. The system is found to consist of an unevolved F2 V primary component and a K type secondary component which has a much larger radius and luminosity than expected for its mass. The binary may be semi-detached, with the primary component completely filling its Roche lobe, or may be in a state of marginal contact. In order to obtain a solution to the photometric data it was necessary to treat the secondary component albedo as a free parameter, yielding a value greater than unity. This result implies that there is an abnormal distribution of luminosity on the surface of the binary, which may be interpreted either as an excess of light on the facing hemisphere of one or both of the components, or as a deficit of light on the averted hemisphere of the secondary.
Hilditch Ron W.
King J. D.
McFarlane T. M.
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