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Spectroscopic binaries among AGB stars from HERMES/Mercator: the case of V Hya

Published online by Cambridge University Press:  30 December 2019

Alain Jorissen ,
Sophie Van Eck ,
Thibault Merle  and
Hans Van Winckel
Alain Jorissen
Affiliation:
Institut d’Astronomie et d’Astrophysique, Université libre de Bruxelles, CP 226, B-1050 Bruxelles, Belgium email: [email protected]
Sophie Van Eck
Affiliation:
Institut d’Astronomie et d’Astrophysique, Université libre de Bruxelles, CP 226, B-1050 Bruxelles, Belgium email: [email protected]
Thibault Merle
Affiliation:
Institut d’Astronomie et d’Astrophysique, Université libre de Bruxelles, CP 226, B-1050 Bruxelles, Belgium email: [email protected]
Hans Van Winckel
Affiliation:
Institute of Astronomy, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium email: [email protected]
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Abstract

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We report on our search for spectroscopic binaries among a sample of AGB stars. Observations were carried out in the framework of the monitoring of radial velocities of (candidate) binary stars performed at the Mercator 1.2m telescope, using the HERMES spectrograph. We found evidence for duplicity in UV Cam, TU Tau, BL Ori, VZ Per, T Dra, and V Hya.

Keywords

binaries: spectroscopicstars: carbonstars: AGB and post-AGB
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium S343: Why Galaxies Care About AGB Stars: A Continuing Challenge through Cosmic Time , August 2018 , pp. 431 - 433
Copyright
© International Astronomical Union 2019 

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