First ground-based photometry and light-curve analysis of the eccentric eclipsing binary V744 Cas

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dc.contributor.authorBulut, I.
dc.contributor.authorCicek, C.
dc.contributor.authorErdem, A.
dc.contributor.authorBakis, V.
dc.contributor.authorDemircan, O.
dc.contributor.authorDegirmenci, O. L.
dc.date.accessioned2019-10-27T19:20:14Z
dc.date.available2019-10-27T19:20:14Z
dc.date.issued2006
dc.departmentEge Üniversitesien_US
dc.description.abstractThe first ground-based BVR photometric observations of the recently discovered eclipsing binary V744 Cas are presented. From these measurements, timings for two primary and one secondary minima have been calculated. The light curves of the system were analyzed by using the Wilson-Devinney program. The analysis shows that the system is detached with two similar components of spectral type A2V, and the orbit is eccentric (e = 0.0662 +/- 0.0005). The longitude of the periastron (w) was found significantly different for two different light curves (ours and that of Hipparcos), which is strongly suggestive of an apsidal motion with a period of about 425 +/- 68 yr. This makes V744 Cas an important candidate for studies of apsidal motions. The first estimate of the absolute dimensions place the system close to the terminal age of the main sequence (TAMS) in the HR diagram. The distance from the spectroscopic parallax (d = 740 +/- 10 pc) was found to be slightly larger than the Hipparcos distance of d = 610 +/- 400 pc. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en_US
dc.identifier.doi10.1002/asna.200510656
dc.identifier.endpage916en_US
dc.identifier.issn0004-6337
dc.identifier.issn0004-6337en_US
dc.identifier.issue9en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage912en_US
dc.identifier.urihttps://doi.org/10.1002/asna.200510656
dc.identifier.urihttps://hdl.handle.net/11454/38850
dc.identifier.volume327en_US
dc.identifier.wosWOS:000241781300012en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWiley-V C H Verlag Gmbhen_US
dc.relation.ispartofAstronomische Nachrichtenen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectstars : binaries : eclipsingen_US
dc.subjectstars : individual : V744 Casen_US
dc.titleFirst ground-based photometry and light-curve analysis of the eccentric eclipsing binary V744 Casen_US
dc.typeArticleen_US

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