APSIDAL MOTION IN ECCENTRIC ECLIPSING BINARY WW CAMELOPARDALIS

Journal Article · Mon Mar 15 00:00:00 EDT 2010 · Astronomical Journal (New York, N.Y. Online)

DOI:https://doi.org/10.1088/0004-6256/139/3/1028; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)· OSTI ID:21301263

Wolf, M ^[1]; Kotkova, L ^[2]; Kocian, R ^[3]; Dreveny, R ^[4]

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1. Astronomical Institute, Faculty of Mathematics and Physics, Charles University of Prague, CZ-180 00 Praha 8, V Holesovickach 2 (Czech Republic)
2. Astronomical Institute, Academy of Sciences, Fricova 298, CZ-251 65 Ondrejov (Czech Republic)
3. Observatory and Planetarium of Johann Palisa, VSB-Technical University of Ostrava, CZ-708 33 Ostrava (Czech Republic)
4. Private Observatory, Vinohrady 57, CZ-669 02 Znojmo (Czech Republic)

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.

• OSTI ID: 21301263
• Journal Information: Astronomical Journal (New York, N.Y. Online), Vol. 139, Issue 3; Other Information: DOI: 10.1088/0004-6256/139/3/1028; Country of input: International Atomic Energy Agency (IAEA); ISSN 1538-3881
• Country of Publication: United States
• Language: English

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