Absolute dimensions and evolutionary status of UW CMa

dc.contributor.author	Parthasarathy, M
dc.date.accessioned	2009-01-23T15:03:06Z
dc.date.available	2009-01-23T15:03:06Z
dc.date.issued	1978-11
dc.identifier.citation	Monthly Notices Royal Astronomical Society, Vol. 185, pp. 485 – 492	en
dc.identifier.issn	0035-8711
dc.identifier.uri	http://hdl.handle.net/2248/4280
dc.description.abstract	Photoelectric B and V light curves of close binary system UW Canis Majoris (08.5 If +O-B) obtained by Doss are analysed. Combining the photoelectric elements and the spectroscopic orbit by Struve et al. absolute dimensions of the system are determined. The mass of the bright primary (08.5 If) components id found to be 19.3 Mө and that of the faint secondary to be 23.2 Mө. the primary has filled the Roche lobe and it is 1 – 2 mag over luminous for its mass. The massive secondary component is most likely a main sequence star. Comparison with the theoretical evolutionary models of massive close binary systems undergoing case A of mass exchange indicate that UW CMa is close to the contact stage of evolution.	en
dc.language.iso	en	en
dc.publisher	Royal Astronomical Society	en
dc.relation.uri	http://adsabs.harvard.edu/abs/1978MNRAS.185..485P	en
dc.subject	Close Binaries: Evolution	en
dc.subject	Close Binaries: Light Curves	en
dc.subject	Close Binaries: Masses	en
dc.subject	Close Binaries: Photometric Elements	en
dc.title	Absolute dimensions and evolutionary status of UW CMa	en
dc.type	Article	en