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New empirical fitting functions for the Lick/IDS indices using MILES

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Martín Hernández, J.M. and Mármol Queraltó, E. and Gorgas García, Francisco Javier and Cardiel López, Nicolás and Sánchez Blázquez, P. and Cenarro, A.J. and Peletier, R. F. and Vazdekis, A. and Falcón Barroso, J. (2010) New empirical fitting functions for the Lick/IDS indices using MILES. Highlights of Spanish Astrophysics . p. 309. ISSN 1570-6591

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Official URL: http://dx.doi.org/10.1007/978-3-642-11250-8_54


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Abstract

We are presenting new empirical fitting functions for the Lick/IDS line-strength indices as measured in MILES (Medium-resolution INT Library of Empirical Spectra). Following previous work in the field, these functions describe the empirical behaviour of the line-strength indices with the atmospheric stellar parameters (T_(eff), logɡ, [Fe/H]). In order to derive the fitting functions we have devised a new procedure which, being fully automatic, provides a better description of the line-strength index variations in the stellar parameter space.


Item Type:Article
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© Springer-Verlag Berlin Heidelberg 2010. Scientific Meeting of the Spanish-Astronomical-Society (SEA) (8th; 2008; Santander-SPAIN).

Subjects:Sciences > Physics > Astrophysics
ID Code:59869
Deposited On:15 Apr 2020 08:49
Last Modified:15 Apr 2020 11:54

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