| Issue |
EAS Publications Series
Volume 63, 2013
New Advances in Stellar Physics: From Microscopic to Macroscopic Processes
|
|
|---|---|---|
| Page(s) | 407 - 409 | |
| Section | Posters | |
| DOI | https://doi.org/10.1051/eas/1363046 | |
| Published online | 19 December 2013 | |
New Advances in Stellar Physics: From Microscopic to Macroscopic Processes
G. Alecian, Y. Lebreton, O. Richard and G. Vauclair (eds)
EAS Publications Series, 63 (2013) 407–409
G. Alecian, Y. Lebreton, O. Richard and G. Vauclair (eds)
EAS Publications Series, 63 (2013) 407–409
NLTE Iron abundance determination in Red Giants
1 Laboratoire Univers et Particules de Montpellier (LUPM), Université de Montpellier 2, CNRS, France
2 Institut d'Astronomie et Astrophysique, Université Libre de Bruxelles, Belgique
Our aim is to perform Non-LTE iron abundance calculations on a sample of Kepler red giants with reliable fundamental atmospheric parameters from asteroseismology, specifically log g, in order to calibrate for unknown atomic collisional effects with neutral hydrogen for which quantum mechanical data does not yet exist. Preliminary results show better mutual agreement between FeI and FeII lines as compared to LTE, as well as less FeI abundance dispersion than that of previous work.
© EAS, EDP Sciences, 2013