Close Binary System GO Cyg

Details Close Binary System GO Cyg Close Binary System GO Cyg

2011-09-12

arxiv.org/abs/1109.2634v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Accepted for publication in New Astronomy, 18 pages, 4 figures, 7 tables

Scientific paper

10.1016/j.newast.2011.09.002

In this study, we present long term photometric variations of the close binary system \astrobj{GO Cyg}. Modelling of the system shows that the primary is filling Roche lobe and the secondary of the system is almost filling its Roche lobe. The physical parameters of the system are $M_1 = 3.0\pm0.2 M_{\odot}$, $M_2 = 1.3 \pm 0.1 M_{\odot}$, $R_1 = 2.50\pm 0.12 R_{\odot}$, $R_2 = 1.75 \pm 0.09 R_{\odot}$, $L_1 = 64\pm 9 L_{\odot}$, $L_2 = 4.9 \pm 0.7 L_{\odot}$, and $a = 5.5 \pm 0.3 R_{\odot}$. Our results show that \astrobj{GO Cyg} is the most massive system near contact binary (NCB). Analysis of times of the minima shows a sinusoidal variation with a period of $92.3\pm0.5$ years due to a third body whose mass is less than 2.3$M_{\odot}$. Finally a period variation rate of $-1.4\times10^{-9}$ d/yr has been determined using all available light curves.

Affiliated with

Also associated with

No associations

Rating

Close Binary System GO Cyg 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 Close Binary System GO Cyg, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Close Binary System GO Cyg will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-332891