A photometric study of W UMa-type binary BC Gru

Details A photometric study of W UMa-type binary BC Gru A photometric study of W UMa-type binary BC Gru

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aca....42..103p&link_type=abstract

Acta Astronomica (ISSN 0001-5237), vol. 42, no. 2, 1992, p. 103-116.

Astronomy and Astrophysics

Astronomy

4

Astronomical Photometry, Eclipsing Binary Stars, Light Curve, Ephemerides, Periodic Variations, Stellar Color, Variable Stars

Scientific paper

UBVR cIc light curves were obtained for the W UMa-type system BC Gru. Five times of minima were determined and ephemeris was derived. An optimization procedure aimed at solving binary light curves is presented. An application to BC Gru data illustrates the operation of the method. The present analysis indicates that BC Gru is a contact binary with the mass ratio of 1.77 +/- 0.49 and an inclination of 66.9 +/- 2.8.

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