Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/5336
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dc.contributor.authorAntokhina, E. A-
dc.contributor.authorSrinivasa Rao, M-
dc.contributor.authorParthasarathy, M-
dc.date.accessioned2011-02-04T10:49:31Z-
dc.date.available2011-02-04T10:49:31Z-
dc.date.issued2011-04-
dc.identifier.citationNew Astronomy, Vol. 16, No. 3, pp. 177-182en
dc.identifier.urihttp://hdl.handle.net/2248/5336-
dc.descriptionRestricted Accessen
dc.description.abstractHipparcos photometric data for the massive O-type binary UW CMa were analysed within the framework of the Roche model. Photometric solutions were obtained for five mass ratios in the q = M2/M1 = 0.5–1.5 range. The system is found to be in a contact configuration. Independently of q, the best-fitting model solutions correspond to the orbital inclination i not, vert, similar 71° and the temperature of the secondary component T2 not, vert, similar 33500 K, at the fixed temperature of the primary T1 = 33750 K. Considering that the spectrum of the secondary is very weak, photometric solutions corresponding to the contact configuration favor the mass ratio q smaller than unity (in which case the luminosity of the secondary is smaller than that of the primary). The absolute parameters of the system are estimated for different values of the mass ratio.en
dc.language.isoenen
dc.publisherElsevier B.Ven
dc.relation.urihttp://dx.doi.org/10.1016/j.newast.2010.09.008en
dc.rights© Elsevier B.Ven
dc.subjectHipparcos light curveen
dc.subjectlight curve UW CMaen
dc.subjectBinariesen
dc.subjectEvolutionen
dc.titleLight curve analysis of Hipparcos data for the massive O-type eclipsing binary UW CMaen
dc.typeArticleen
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