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

A. Jorissen; S. Van Eck; T. Merle; H. Van Winckel

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

Solar and Stellar Astrophysics 2018-09-27 v1

Authors: A. Jorissen , S. Van Eck , T. Merle , H. Van Winckel

Abstract

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. This short communication focus on V Hya, found to behave like RV Tau of the b subtype, which are binaries surrounded by a disc.

Keywords

spectroscopic binaries agb stars hermes spectrograph mercator telescope v hya rv tau stars

Cite

@article{arxiv.1809.09623,
  title  = {Spectroscopic binaries among AGB stars from HERMES/Mercator: the case of V Hya},
  author = {A. Jorissen and S. Van Eck and T. Merle and H. Van Winckel},
  journal= {arXiv preprint arXiv:1809.09623},
  year   = {2018}
}

Comments

Poster presented at IAU Symp. 343 "Why Galaxies Care About AGB Stars", Vienna, august 2018

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