On the Period Variations of BH Virginis

Details On the Period Variations of BH Virginis On the Period Variations of BH Virginis

Jun 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008pasj...60..571t&link_type=abstract

Publications of the Astronomical Society of Japan, Vol.60, No.3, pp.571--575

Astronomy and Astrophysics

Astronomy

1

Binaries: Eclipsing, Stars: Individual (Bh Virginis), Stars: Period

Scientific paper

In the present work, 17 new times of the light minimum for BHVir were derived from observations by Kjurkchieva etal. (2004, A&A, 424, 993). Combining the new determined eclipse times with others compiled from the literature, the behavior of their O-C variation was investigated. It has been found that the orbital period of BHVir shows some cyclic variations with three different periods: a long-period variation of 51.7years, and two short-period variations of 9.2years and 11.8years, respectively. The mechanisms that could explain the period changes of the system are discussed.

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