Autor:	Cruz, Monique, Rossi, Silvia, Beers, Timothy C.
Rok vydání:	2009
Předmět:	Astrophysics - Solar and Stellar Astrophysics
Druh dokumentu:	Working Paper
DOI:	10.1071/AS08042
Popis:	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. Comment: Accepted for publication in: Publications of the Astronomical Society of Australia
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0907.0596 Zobrazit plný text záznamu View this record from Arxiv