Galactic archaeology with asteroseismology and spectroscopy: Red giants observed by CoRoT and APOGEE - Observatoire de Paris Access content directly
Journal Articles Astronomy and Astrophysics - A&A Year : 2017

Galactic archaeology with asteroseismology and spectroscopy: Red giants observed by CoRoT and APOGEE

F. Anders
T. Morel
  • Function : Author
N. Themessl
  • Function : Author
S. Mathur
B. X. Santiago
  • Function : Author
L. N. da Costa
  • Function : Author
M. A. G. Maia
  • Function : Author
C. Allende Prieto
  • Function : Author
K. Cunha
  • Function : Author
C. Epstein
  • Function : Author
A. E. García Pérez
  • Function : Author
P. Harding
  • Function : Author
J. Holtzman
  • Function : Author
S. R. Majewski
  • Function : Author
Sz. Mészáros
  • Function : Author
D. Nidever
  • Function : Author
K. Pan
  • Function : Author
R. P. Schiavon
  • Function : Author
M. D. Shetrone
  • Function : Author
K. Stassun
O. Zamora
  • Function : Author
G. Zasowski
  • Function : Author
A. Johnson
A. Maia
  • Function : Author
C. Allende Prieto
C. Beers
  • Function : Author
A. García
  • Function : Author
R. Majewski
  • Function : Author

Abstract

With the advent of the space missions CoRoT and Kepler, it has become feasible to determine precise asteroseismic masses and ages for large samples of red-giant stars. In this paper, we present the CoRoGEE dataset -- obtained from CoRoT lightcurves for 606 red giant stars in two fields of the Galactic disc which have been co-observed for an ancillary project of APOGEE. We have used the Bayesian parameter estimation code PARAM to calculate distances, extinctions, masses, and ages for these stars in a homogeneous analysis, resulting in relative statistical uncertainties of $\sim2\%$ in distance, $\sim4\%$ in radius, $\sim9\%$ in mass and $\sim25\%$ in age. We also assess systematic age uncertainties due to different input physics and mass loss. We discuss the correlation between ages and chemical abundance patterns of field stars over a large radial range of the Milky Way's disc (5 kpc $

Dates and versions

obspm-02268073 , version 1 (20-08-2019)

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F. Anders, C. Chiappini, T. S. Rodrigues, A. Miglio, J. Montalban, et al.. Galactic archaeology with asteroseismology and spectroscopy: Red giants observed by CoRoT and APOGEE. Astronomy and Astrophysics - A&A, 2017, 597, pp.A30. ⟨10.1051/0004-6361/201527204⟩. ⟨obspm-02268073⟩
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