EDP Sciences
Free access
Issue
A&A
Volume 442, Number 3, November II 2005
Page(s) 1127 - 1134
Section On-line catalogs and data
DOI http://dx.doi.org/10.1051/0004-6361:20042490


A&A 442, 1127-1134 (2005)
DOI: 10.1051/0004-6361:20042490

An extensive library of 2500-10 500 Å synthetic spectra

U. Munari1, R. Sordo1, 2, F. Castelli3 and T. Zwitter4

1  INAF Osservatorio Astronomico di Padova, via dell'Osservatorio 8, 36012 Asiago (VI), Italy
    e-mail: munari@pd.astro.it
2  Dipartimento di Astronomia, Univ. di Padova, vicolo della Specola 5, 35122 Padova, Italy
3  INAF - Osservatorio Astronomico di Trieste, Via G.B. Tiepolo 11, 34131 Trieste, Italy
4  University of Ljubljana, Department of Physics, Jadranska 19, 1000 Ljubljana, Slovenia

(Received 6 December 2004 / Accepted 19 July 2005 )

Abstract
We present a complete library of synthetic spectra based on Kurucz's codes that covers the 2500-10 500 Å wavelength range at resolving powers $R_{\rm {P}}=20\,000$, 11 500 ($\equiv$GAIA), 8500 ($\equiv$RAVE), 2000 ($\equiv$SLOAN) and uniform dispersions of 1 and 10 Å/pix. The library maps the whole HR diagram, exploring 51 288 combinations of atmospheric parameters spanning the ranges: 3500 $\leq
T_{\rm eff} \leq 47\,500$ K, $0.0\leq \log g \leq 5.0 $, $-2.5 \leq
{\rm [M/H]} \leq 0.5$, [ $\alpha$/Fe] = 0.0,+0.4, $\xi$ = 1, 2, 4 km s-1, 0 $ \leq V_{\rm rot} \leq$ 500 km s-1. The spectra are available both as absolute fluxes as well as continuum normalized. Performance tests and spectroscopic applications of the library are discussed, including automatic classification of data from spectroscopic surveys like RAVE, SLOAN, GAIA. The entire library of synthetic spectra is accessible via the web.


Key words: astronomical data bases: miscellaneous -- stars: atmospheres -- stars: fundamental parameters -- surveys

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