Searching For s-Process-Enhanced Metal-Poor Stars

Details Searching For s-Process-Enhanced Metal-Poor Stars Searching For s-Process-Enhanced Metal-Poor Stars

Publishing date

2009-07-03

URL

arxiv.org/abs/0907.0596v1

Science

Astronomy and Astrophysics

Field

Astrophysics

SubField

Solar and Stellar Astrophysics

Additional info

Accepted for publication in: Publications of the Astronomical Society of Australia

Type

Scientific paper

Abstract

We present preliminary results for estimation of barium ([Ba/Fe]) and strontium ([Sr/Fe]) abundances ratios using medium-resolution spectra (1-2 {\AA}). We established a calibration between the abundance ratios and line indices for Ba and Sr, using multiple regression and artificial neural network techniques. A comparison between the two techniques (showing the advantage of the latter), as well as a discussion of future work, is presented.

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