Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001coska..31...26p&link_type=abstract
Contributions of the Astronomical Observatory Skalnate Pleso, vol. 31, no. 1, p. 26-42.
Astronomy and Astrophysics
Astronomy
16
Contact Binaries, Photometry, Orbital Period
Scientific paper
New photoelectric BV observations of the eclipsing contact systems EF Dra, GW Cep and CW Cas obtained in autumn 2000 are presented and analyzed. A photometric solution of CW Cas indicates the poor thermal contact of the components. Photometric elements of EF Dra determined from our light curves combined with published spectroscopic elements yield the absolute parameters of the components: m1 = 1.81 +/- 0.10 MSun, m2 = 0.29 +/- 0.03 MSun, R1 = 1.701 +/- 0.026 RSun and R2 = 0.778 +/- 0.012 RSun. The detected third light in EF Dra is used to estimate the mass of the third body m3 approx. 0.75 MSun as well as its K1-2 spectral type. The observed period changes of the eclipsing pair indicate either a 1360 days or more than 12 years orbital period of the third body. The observed period decreases in GW Cep and CW Cas are probably influenced by the presence of their third bodies.
Chochol Drahomir
Parimucha Stefan
Pribulla Theodor
Vanko Martin
No associations
LandOfFree
Photoelectric photometry of the eclipsing contact binaries: EF Dra GW Cep and CW Cas 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 Photoelectric photometry of the eclipsing contact binaries: EF Dra GW Cep and CW Cas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photoelectric photometry of the eclipsing contact binaries: EF Dra GW Cep and CW Cas will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1184764