Apsidal Motion in Eccentric Eclipsing Binary WW Camelopardalis

Details Apsidal Motion in Eccentric Eclipsing Binary WW Camelopardalis Apsidal Motion in Eccentric Eclipsing Binary WW Camelopardalis

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aj....139.1028w&link_type=abstract

The Astronomical Journal, Volume 139, Issue 3, pp. 1028-1030 (2010).

Astronomy and Astrophysics

Astronomy

Binaries: Eclipsing, Stars: Fundamental Parameters, Stars: Individual: Ww Cam

Scientific paper

WW Camelopardalis is a relatively bright eclipsing binary system with a slightly eccentric orbit. A dozen of its new eclipse times were measured as part of our long-term observational project of eccentric eclipsing binaries. Based on a new solution of the current O - C diagram, we found for the first time an apsidal motion in good agreement with theory. Its period is about 370 ± 50 years. The determined internal structure constant is close to the theoretically expected value. The relativistic effect is significant, being about 13% of the total apsidal motion rate.

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