BV observations of W UMa-type binaries - CK Boo, BI CVn, and AH VIR

Details BV observations of W UMa-type binaries - CK Boo, BI CVn, and AH VIR BV observations of W UMa-type binaries - CK Boo, BI CVn, and AH VIR

Jul 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987ap%26ss.135..169d&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 135, no. 1, July 1987, p. 169-174.

Astronomy and Astrophysics

Astrophysics

12

Astrometry, Binary Stars, Electrophotometry, Late Stars, Stellar Spectrophotometry, Light Curve, Mass Transfer, Minima, Periodic Variations, Stellar Activity

Scientific paper

Photoelectric BV observations of W UMa-type binaries CK Boo, BI CVn, and AH Vir are presented, and light curve variations and shifts of minima are discussed in the context of stellar activity and mass transfer. The O-C increments in the three systems were found to be 0.08, 0.80, and 0.60 s per revolution, respectively. The new ephemeris for the future observations were also found.

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