BH Cas VRI differential magnitudes (Zola+, 2001)

Details BH Cas VRI differential magnitudes (Zola+, 2001) BH Cas VRI differential magnitudes (Zola+, 2001)

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ycat..33740164z&link_type=abstract

VizieR On-line Data Catalog: J/A+A/374/164. Originally published in: 2001A&A...374..164Z

Other

Binaries: Eclipsing, Photometry: Vri

Scientific paper

New CCD observations of the contact binary system BH Cas are presented in this paper. New times of minima and an ephemeris based on our observations are also given. Complete light curves obtained in the V, R and I filters have been analyzed with the Wilson-Devinney code to derive the geometrical and physical parameters of the system. The final solution leads to a contact configuration (f=~21-22%). We have found that the photometric mass ratio differs from the spectroscopic one by about 13%, a discrepancy which is not uncommon for other W UMa systems. The absolute elements of the system are used to study its evolutionary status. The results show that BH Cas is a fairly evolved W-type W UMa system. (1 data file).

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