Radhakrishnan, K. R. ; Sarma, K. R. ; Abhyankar, K. D. (1984) Photometric and spectroscopic study of R CMa Astrophysics and Space Science, 99 (1-2). pp. 229-236. ISSN 0004-640X
|
PDF
- Publisher Version
324kB |
Official URL: http://www.springerlink.com/content/u08267l1635753...
Related URL: http://dx.doi.org/10.1007/BF00650246
Abstract
UBV light curves and spectrograms of R CMa obtained with the 48-inch telescope of Japal-Rangapur Observatory during 1980-82 have been used for deriving the eclipse and orbital elements as well as the absolute dimensions of the components. The primary is found to be a Main-Sequence F2V star of mass 1.52M⊙ and the secondary a subgiant star of spectral type G8 and mass 0.20M⊙ which fills its Roche lobe, in agreement with Kopal and Shapley (1956) results, Kopal (1959), or Sahade's (1963) results. From a consideration of the possible evolution of this system it is concluded that a large fraction of the original mass of the secondary is lost from the system. A study of the period changes indicates the possible presence of a third component of mass of about 0.5M⊙ which is most likely to be an M dwarf.
Item Type: | Article |
---|---|
Source: | Copyright of this article belongs to Springer-Verlag. |
ID Code: | 23971 |
Deposited On: | 01 Dec 2010 12:50 |
Last Modified: | 17 May 2016 07:45 |
Repository Staff Only: item control page