Sun-like Oscillations in the Population II giant HD 122563 - Université Côte d'Azur Access content directly
Conference Papers Year : 2019

Sun-like Oscillations in the Population II giant HD 122563

F. Thévénin
  • Function : Author
F. Grundahl
E. Corsaro
  • Function : Author
M. F. Andersen
  • Function : Author
V. Antoci
  • Function : Author
L. Bigot
  • Function : Author
R. Collet
  • Function : Author
P. L. Pallé
B. Pichon
  • Function : Author
D. Salabert
  • Function : Author

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.
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Dates and versions

hal-03428787 , version 1 (15-11-2021)

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Orlagh Louise Creevey, F. Thévénin, F. Grundahl, E. Corsaro, M. F. Andersen, et al.. Sun-like Oscillations in the Population II giant HD 122563. SF2A-2019: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, Jun 2019, Nice, France. ⟨hal-03428787⟩
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