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Title:
Contribution to the search for binaries among Am stars - VI. Orbital elements of ten new spectroscopic binaries, implications on tidal effects
Authors:
Carquillat, J.-M.; Prieur, J.-L.; Ginestet, N.; Oblak, E.; Kurpinska-Winiarska, M.
Affiliation:
AA(UMR 5572 d'Astrophysique, Observatoire Midi-Pyrénées - CNRS, 14 avenue Edouard Belin, 31400 Toulouse, France), AB(UMR 5572 d'Astrophysique, Observatoire Midi-Pyrénées - CNRS, 14 avenue Edouard Belin, 31400 Toulouse, France), AC(UMR 5572 d'Astrophysique, Observatoire Midi-Pyrénées - CNRS, 14 avenue Edouard Belin, 31400 Toulouse, France), AD(UMR 6091, Observatoire de Besançon - CNRS, 41bis avenue de l'observatoire, 25010 Besançon, France), AE(Obserwatorium Astronomiczne, Uniwersytet Jagiellonski, 171 ulica Orla, 30244 Krakow, Poland)
Publication:
Monthly Notices of the Royal Astronomical Society, Volume 352, Issue 2, pp. 708-720. (MNRAS Homepage)
Publication Date:
08/2004
Origin:
MNRAS
Astronomy Keywords:
binaries: spectroscopic, stars: fundamental parameters
DOI:
10.1111/j.1365-2966.2004.07965.x
Bibliographic Code:
2004MNRAS.352..708C

Abstract

We present the results of a radial-velocity study of 10 Am stars (HD 19342, 19910, 36360, 102925, 126031, 127263, 138406, 155714, 195692 and 199360) observed at Observatoire de Haute-Provence with the CORAVEL instrument. We find that these systems are spectroscopic binaries whose orbital elements are determined for the first time. Both components were measured for HD 126031, an eclipsing binary, whereas the other systems were detected as single-line binaries only. Physical parameters were inferred from this study for the primaries of all systems, and for the secondary of HD 126031. We observed a higher incidence of synchronized/circularized systems than predicted by the theoretical models of the radiative dissipation of dynamical tides.

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