Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009ap%26ss.321..209h&link_type=abstract
Astrophysics and Space Science, Volume 321, Issue 3-4, pp. 209-215
Astronomy and Astrophysics
Astrophysics
2
Stars, Binaries: Close, Stars, Binaries: Eclipsing, Stars, Individual (Rv Psc), Stars, Evolution
Scientific paper
The first complete charge-coupled device (CCD) light curves in B and V bands of the short-period binary system, RV Psc, are presented. It is found that the light curves of RV Psc are symmetric and belong to the EW type rather than the EA type as described in the 4th edition of the GCVS. Photometric solutions were derived by using the 2003 version of the Wilson-Devinney (W-D) method. It is shown that RV Psc is a marginal contact system ( f=5.8%±6.6%) with a mass ratio of q=0.5978±0.0096. The temperature difference between both components is only 17 K. Analysis of the O-C curve suggests that the period of RV Psc shows a long-term continuous decrease at a rate of dP/ dt=-5.89×10-8 days/year. The long-time period decrease, the marginal-contact configuration, and the astrophysical parameters of the binary system, all suggest that it is a newly formed marginal contact binary from a case A mass transfer and will evolve into a normal overcontact binary.
He Jiajia
Qian Shengbang
No associations
LandOfFree
RV Piscium: a marginal contact binary system does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with RV Piscium: a marginal contact binary system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and RV Piscium: a marginal contact binary system will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-776255