Sun-like Oscillations in the Population II giant HD 122563
Solar and Stellar Astrophysics
2020-06-01 v2 Astrophysics of Galaxies
Abstract
We have been monitoring the metal-poor Population II giant, HD 122563, for radial velocity variations since 2016 using the SONG telescope on Tenerife. We have detected the global seismic quantity, numax, which provides information related to the stellar parameters. By combining these data with complementary data, we derive a new precise surface gravity, radius and distance to the star. Our results are corroborated by using the parallax from Gaia DR2. We present these results and some of their implications.
Keywords
Cite
@article{arxiv.2005.13883,
title = {Sun-like Oscillations in the Population II giant HD 122563},
author = {Orlagh Creevey and Frédéric Thévenin and Frank Grundahl and Enrico Corsaro and Mads F. Andersen and Victoria Antoci and Lionel Bigot and Remo Collet and Pere L. Pallé and Bernard Pichon and David Salabert},
journal= {arXiv preprint arXiv:2005.13883},
year = {2020}
}
Comments
Proceedings of the French Astronomy Society Meeting, SF2A, June 2019; v2: typo in reported numax in Table, authors corrected