| Autor: |
Watson, L.C., Hearnshaw, J.B., Pollard, K.R., Kilmartin, P.M., Gilmore, A.C. |
| Předmět: |
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| Zdroj: |
Monthly Notices of the Royal Astronomical Society; 6/11/2000, Vol. 315 Issue 1, p69-76, 8p, 7 Charts, 7 Graphs |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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