Publication details

Rapid apsidal motion in V381 Cassiopeiae

Authors

WOLF Marek ŠMELCER Ladislav KUČÁKOVÁ Hana HYNEK Tomáš ONDERKOVÁ Kateřina SVOBODA Petr CHRASTINA Marek

Year of publication 2010
Type Article in Periodical
Magazine / Source New Astronomy
MU Faculty or unit

Faculty of Science

Citation
Web http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TJK-4Y3TXGF-1&_user=835458&_coverDate=08%2F31%2F2010&_alid=1444702598&_rdoc=1&_fmt=high&_orig=search&_origin=search&_zone=rslt_list_item&_cdi=5313&_sort=r&_st=13&_docanchor=&view=c&_ct=1&_acct=C0
Field Astronomy and astrophysics
Keywords binaries; eclipsing binaries; V381 Cas; fundamental parameters
Description V381 Cas is a relatively bright and early-type eclipsing binary system. Several new times of its eclipses were measured as part of our long-term observational project of eccentric eclipsing binaries. Based on a current O-C diagram solution, we found for the first time that its orbit is slightly eccentric (e = 0.025) and shows a very rapid apsidal advance with short period of about 20 years only. The relativistic and third body effects are negligible, being about 3% of the total apsidal motion rate.
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