Apsidal motion in eccentric eclipsing binaries: V871 Aql, V345 Lac, V401 Lac and CR Sct

About thirty new times of minimum light recorded with photoelectric or CCD photometers were obtained for several little studied eccentric-orbit eclipsing binaries V871 Aql ($P=3\fd0$, $e=0.13$), V345 Lac ($ 7\fd5, 0.46$), V401 Lac ($ 2\fd0, 0.16$) and CR Sct ($ 4\fd2, 0.09$). Their $\rm O{-}C$ diagr...

Full description

Saved in:
Bibliographic Details
Published in:Astronomy and astrophysics (Berlin) 2004-06, Vol.420 (2), p.619-624
Main Authors: Wolf, M., Harmanec, P., Šarounová, L., Zejda, M., Božić, H., Hornoch, K., Kozyreva, V. S., Hynek, T., Král, L.
Format: Article
Language:English
Subjects:
stars: binaries: eclipsing
stars: fundamental parameters
stars: general
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:About thirty new times of minimum light recorded with photoelectric or CCD photometers were obtained for several little studied eccentric-orbit eclipsing binaries V871 Aql ($P=3\fd0$, $e=0.13$), V345 Lac ($ 7\fd5, 0.46$), V401 Lac ($ 2\fd0, 0.16$) and CR Sct ($ 4\fd2, 0.09$). Their $\rm O{-}C$ diagrams were analyzed using all reliable timings found in the literature and in all cases an apsidal motion was either discovered or confirmed. The new values for the elements of the apsidal motion were derived. We find periods of apsidal motion of about 255, 7000, 79.4 and 4400 years for V871 Aql, V345 Lac, V401 Lac and CR Sct, respectively.
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361:20035927