NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Radial velocity measurements of the chromospherically-active stars (2): HD 28591 = V492 PerFrom 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.
Document ID
19950035472
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Dadonas, V.
(Vilnius Univ. Vilnius, Lithuania)
Sperauskas, J.
(Vilnius Univ. Vilnius, Lithuania)
Fekel, F. C.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Morton, M. D.
(Vanderbilt Univ. Nashville, TN, United States)
Date Acquired
August 16, 2013
Publication Date
October 1, 1994
Publication Information
Publication: Astrophysics and Space Science
Volume: 220
Issue: 1
ISSN: 0004-640X
Subject Category
Astronomy
Accession Number
95A67071
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available