Four colour photometry of late-type binary systems. II. New light curves of BH Virginis

Details Four colour photometry of late-type binary systems. II. New light curves of BH Virginis Four colour photometry of late-type binary systems. II. New light curves of BH Virginis

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26as..123...59c&link_type=abstract

A & A Supplement series, Vol. 123, May II 1997, 59-61.

Astronomy and Astrophysics

Astronomy

7

Stars: Binaries: Eclipsing, Stars: Individual: Bh Vir

Scientific paper

This paper presents new complete uvby light curves of the late-type detached eclipsing binary BH Vir (G0V + G5V, P=0.81687099 deg). This binary system has been observed during four campaigns at the Calar Alto Observatory (Almeria, Spain) and at the European Southern Observatory (La Silla, Chile). This observations are part of a 6 year uvby and Hβ monitoring program of low mass eclipsing binaries which main objective is to provide accurate absolute astrophysical parameters for late-type main sequence stars. 1585 points spread over the binary period and covering both eclipses are given. The internal accuracy of the standard photometry measured as the mean RMS of the differences between standard value and observed value for the standard stars observed along the program is quoted in a few millimagnitudes. Detailed analysis of BH Vir, based on these light curves, will be published separately. Based on observations collected with the Danish 0.5m telescope at the European Southern Observatory (ESO), La Silla, Chile and the Spanish 1.5m telescope at Calar Alto, Almeria, Spain. Table 2 will be accessible only in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/Abstract.html.

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