UBV photometry of the eclipsing binary R Canis Majoris

Radhakrishnan, K. R. ; Sarma, M. B. K. ; Abhyankar, K. D. (1985) UBV photometry of the eclipsing binary R Canis Majoris Bulletin of the Astronomical Society of India, 13 (3). pp. 261-274. ISSN 0304-9523

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Official URL: http://adsabs.harvard.edu/abs/1985BASI...13..261R


Photoelectric UBV light curves of the eclipsing binary R CMa obtained between 1980 and 1982 with the 1.2m reflecting telescope of the Japal-Rangapur observatory during 1980-1982 have been used for deriving the eclipse elements of the binary. In combination with the spectroscopic elements, absolute dimensions of the system are obtained. The solution of the system has suggested the primary eclipse to be transit and the secondary to be occultation. The B and V curves gave a unified solution while the U curve gave a different solution. The values of: k= 0.68, rg,h= 0.319,rs,c= 0.217, θe= 30°.96, j=79°.93, Rh=1.73±0.04R, Re=1.18±0.02R, mh=1.52M, mc=0.199±0.004M, Lhbol=6.64±0.29 L and Lcbol=0.86± 0.03 L are adopted. The primary component is found to be a normal F 2 V star while the secondary component is found to be a G 8 IV-V star contracting towards a helium white dwarf stage along Hayashi evolutionary track after losing much of its original mass.

Item Type:Article
Source:Copyright of this article belongs to Astronomical Society of India.
Keywords:Algol Type Eclipsing Binaries; Photometric Elements; Stellar Evolution
ID Code:24037
Deposited On:01 Dec 2010 12:42
Last Modified:17 May 2016 07:48

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