Photometric Analysis and 60-YEAR Period Study of the Detached but Near-Contact System VV Virginis

Details Photometric Analysis and 60-YEAR Period Study of the Detached but Near-Contact System VV Virginis Photometric Analysis and 60-YEAR Period Study of the Detached but Near-Contact System VV Virginis

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aj....136.1667s&link_type=abstract

The Astronomical Journal, Volume 136, Issue 4, pp. 1667-1676 (2008).

Astronomy and Astrophysics

Astronomy

Binaries: Close, Binaries: Eclipsing, Stars: Evolution, Stars: Individual: Vv Virginis

Scientific paper

VV Vir is a near-contact but detached mid-G-type eclipsing binary with an asymmetrical light curve due to a weak but regular mass exchange. The binary is apparently approaching contact and has a stream impact spot on the secondary component that is responsible for a quadratically [{dP}/{P} = (- 7.8 ± 0.2) × 10^{-11} ] decreasing period. Our period study included more than 140 minima observed over the past 60 years. We explore other possible near-contact configurations for this binary.

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