Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ap%26ss.220...97d&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 220, no. 1, p. 97-105
Astronomy and Astrophysics
Astrophysics
1
Binary Stars, Chromosphere, G Stars, Radial Velocity, Stellar Activity, Velocity Measurement, Astronomical Spectroscopy, Dwarf Stars, Ellipticity, K Stars, Light Curve, Starspots, Telescopes, Visual Photometry
Scientific paper
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. The upsilon sin i of 24.6 km/sec, results in a minimum radius 10.3 solar radii. 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 the Bright 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.
Dadonas Virgilijus
Fekel Francis C.
Morton Douglas M.
Sperauskas Julius
No associations
LandOfFree
Radial velocity measurements of the chromospherically-active stars (2): HD 28591 = V492 Per does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Radial velocity measurements of the chromospherically-active stars (2): HD 28591 = V492 Per, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radial velocity measurements of the chromospherically-active stars (2): HD 28591 = V492 Per will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1070141