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arXiv · 0907.0596

Searching For s-Process-Enhanced Metal-Poor Stars

Monique Cruz·Silvia Rossi·Timothy C. Beers
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Abstract

We present preliminary results for estimation of barium ([Ba/Fe]) and strontium ([Sr/Fe]) abundances ratios using medium-resolution spectra (1-2 Å). 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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Monique Cruz, Silvia Rossi, Timothy C. Beers. 2009-07-03. Searching For s-Process-Enhanced Metal-Poor Stars. https://doi.org/10.1071/as08042

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