SIMBAD references

2001A&A...374..243W - Astronomy and Astrophysics, volume 374, 243-249 (2001/7-4)

Apsidal motion in eccentric eclipsing binaries: TV Ceti and V451 Ophiuchi.

WOLF M., DIETHELM R. and HORNOCH K.

Abstract (from CDS):

Several new times of minimum light recorded with photoelectric means have been gathered for two bright eccentric eclipsing binaries TV Cet (P=9.1d, e=0.055) and V451 Oph (P=2.2d, e=0.013). Analysis of all available eclipse timings of TV Ceti has revealed a small motion of the line of apsides of {dot}(ω)=0.00030±0.00008deg/cycle, corresponding to an apsidal period of U=30000±8000 years. The contribution from the general relativity effects is dominant ({dot}(ω)rel/{dot}(ω)∼80%). In this system, the third body on an eccentric orbit with a period of 28.5 years is also predicted. The more precise values for the apsidal motion elements were computed for V451 Oph, where apsidal motion with a period of 170±5 years was confirmed. The corresponding internal structure constants log k2 were derived.

Abstract Copyright:

Journal keyword(s): stars: binaries: eclipsing - stars: individual: TV Cet - stars: individual: V451 Oph - stars: fundamental parameters - relativity

Simbad objects: 7

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