Astronomy and Astrophysics – Astrophysics
Scientific paper
2001-12-14
Astronomy and Astrophysics
Astrophysics
12 pages, 10 figures, accepted for publication in A&A
Scientific paper
10.1051/0004-6361:20011739
This paper presents an automated method to determine detailed abundances for A and F-type stars. This method is applied on spectra taken with the ELODIE spectrograph. Since the standard reduction procedure of ELODIE is optimized to obtain accurate radial velocities but not abundances, we present a more appropriate reduction procedure based on IRAF. We describe an improvement of the method of Hill & Landstreet (1993) for obtaining Vsini, microturbulence and abundances by fitting a synthetic spectrum to the observed one. In particular, the method of minimization is presented and tested with Vega and the Sun. We show that it is possible, in the case of the Sun, to recover the abundances of 27 elements well within 0.1 dex of the commonly accepted values.
Erspamer D.
North Pierre
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