Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/5336
Title: Light curve analysis of Hipparcos data for the massive O-type eclipsing binary UW CMa
Authors: Antokhina, E. A
Srinivasa Rao, M
Parthasarathy, M
Keywords: Hipparcos light curve;light curve UW CMa;Binaries;Evolution
Issue Date: Apr-2011
Publisher: Elsevier B.V
Citation: New Astronomy, Vol. 16, No. 3, pp. 177-182
Abstract: Hipparcos 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.
Description: Restricted Access
URI: http://hdl.handle.net/2248/5336
???metadata.dc.rights???: © Elsevier B.V
???metadata.dc.relation.uri???: http://dx.doi.org/10.1016/j.newast.2010.09.008
Appears in Collections:IIAP Publications

Files in This Item:
File Description SizeFormat 
Light curve analysis of Hipparcos data for the massive554.51 kBAdobe PDFView/Open    Request a copy


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.