ISSN:
1572-946X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Photometry of HD 155638=V792 Her has been analyzed to determine the elements of this totally eclipsing RS CVn binary. The light variation outside eclipse was found to have a period of 27d.07±0d.07, which is slightly different from the 27d.5384±0d.0045 orbital period. Analysis of the eclipses was achieved by a modification of the Russell-Merrill technique. With the aid of radial velocity measures, absolute elements were obtained for the hot and cool stars, respectively;R h=2.58R ⊙,R c=12.28R ⊙,M h=1.40M ⊙,M c=1.46M ⊙,i=80o.61 and velocity semi-amplitudesK c=48.36 km s−1±0.79 km s−1, andK h=50.50 km s−1±0.33 km s−1. The apparent magnitudes areV h=9 m .73 andV c=8 m .48. The distance to HD 155638 was estimated to be 310 parsecs.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00646437
Permalink