1998A&A...334..840W

Query : 1998A&A...334..840W

1998A&A...334..840W - Astronomy and Astrophysics, volume 334840-844 (1998/6-3)

Apsidal motion in the eclipsing binaries V1136 Cygni, ES Lacertae, MZ Lacertae and EQ Vulpeculae.

WOLF M., DIETHELM R., KOZYREVA V.S. and SAROUNOVA L.

Abstract (from CDS):

About thirty new times of minimum light recorded with photoelectric means have been gathered for the early-type eccentric eclipsing binaries V1136 Cyg (P=3.46d, e=0.33), ES Lac (P=4.46d, e=0.20), MZ Lac (P=3.16d, e=0.42) and EQ Vul (P=9.30d, e=0.36). The O-C diagrams are analyzed using all reliable timings found in the literature and new values for the elements of the apsidal motion are computed. We find new periods of apsidal motion of about 520, 300, 440 and 2200 years for V1136 Cyg, ES Lac, MZ Lac and EQ Vul, respectively.

Abstract Copyright: ∼

Journal keyword(s): stars: binaries: eclipsing - stars: individual: V1136 Cyg, ES Lac, MZ Lac, EQ Vul - stars: fundamental parameters

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* FT Ori EB* 06 13 58.1528033520 +21 25 39.179938548   9.32 9.29     A0 95 0
2 V* V1136 Cyg EB* 19 37 50.0364276336 +28 50 36.176345592   12.36 12.69     A0 32 0
3 V* EQ Vul EB* 19 58 23.2019314368 +28 01 08.435691552 11.91 11.7 11.0     B8 37 0
4 V* MZ Lac EB* 22 28 01.7340556176 +53 41 00.045136608   11.99 11.45     A2 45 0
5 V* ES Lac EB* 22 32 06.3060563328 +53 57 32.843520936   11.23 10.81     A3 36 0

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