| Autor: |
Dadonas, V., Sperauskas, J., Fekel, F. C., Morton, M. D. |
| Zdroj: |
Astrophysics and Space Science; October 1994, Vol. 220 Issue: 1 p97-105, 9p |
| Abstrakt: |
From two sets of the spectroscopic observations covering a ten year period we have obtained 59 radial velocities of the chromospherically-active star HD 28591 = V492 Per. It is a G9III single-lined spectroscopic binary with a period of 21.2910 days and a circular orbit. Thev sini of 24.6 km s-1, results in a minimum radius 10.3R?. We estimate a distance of 165 ± 40 pc and an orbital inclination of 65 ± 25 degrees. The secondary is probably a mid to late-type K dwarf. The star is brighter than the limiting magnitude of theBright Star Catalogue. The mean photometric and the orbital periods are identical within their uncertainties. Since the star fills a significant fraction of its Roche lobe, about 62%, the photometric light curve may be the result of starspots and a modest ellipticity effect. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
Full text from SpringerLink