Open AccessThe southern active‐chromosphere star HD 6628
Author(s) -
Watson L. C.,
Hearnshaw J. B.,
Pollard K. R.,
Kilmartin P. M.,
Gilmore A. C.
Publication year - 2000
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2000.03374.x
Subject(s) - physics , chromosphere , astrophysics , astronomy , star (game theory) , o type main sequence star , k type main sequence star , stars , t tauri star , spectral line
The star HD 6628, heretofore classified as a G5 subgiant, is shown to be a chromospherically active single‐lined spectroscopic binary with a period of 27.332±0.008 d. From high‐resolution spectra, the system is found to consist of a late F‐type dwarf and an active G8–K1 bright subgiant, the latter having a rotation period of not more than 14.8±3.8 d derived from the width of metal lines. Further stellar and orbital parameters are derived and presented.