Volume 420, Number 2, June III 2004
|Page(s)||619 - 624|
|Section||Stellar structure and evolution|
|Published online||28 May 2004|
Apsidal motion in eccentric eclipsing binaries: V871 Aql, V345 Lac, V401 Lac and CR Sct *
Astronomical Institute, Charles University of Prague, 180 00 Praha 8, V Holešovičkách 2, Czech Republic
2 Astronomical Institute, Academy of Sciences, 251 65 Ondřejov, Czech Republic
3 Nicholas Copernicus Observatory and Planetarium, 616 00 Brno, Czech Republic
4 Hvar Observatory, Faculty of Geodesy, Zagreb University, 10000 Zagreb, Croatia
5 Sternberg Astronomical Institute, State University Moscow, University Avenue 13, Moscow 119899, Russia
6 Johann Palisa Observatory and Planetarium, Technical University Ostrava, 708 33 Ostrava-Poruba, Czech Republic
Corresponding author: M. Wolf, firstname.lastname@example.org
Accepted: 20 February 2004
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 (, ), V345 Lac (), V401 Lac () and CR Sct (). Their 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.
Key words: stars: binaries: eclipsing / stars: general / stars: fundamental parameters
© ESO, 2004
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