An extensive library of 2500–10 500 Å synthetic spectra (original) (raw)

A&A 442, 1127-1134 (2005)

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 (_≡_GAIA), 8500 (_≡_RAVE), 2000 (_≡_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, ![$0.0\leq \log g \leq 5.0 ](https://www.aanda.org/articles/aa/abs/2005/42/aa2490−04/aa2490−04texeq3.png),!, ![](https://www.aanda.org/articles/aa/abs/2005/42/aa2490−04/aa2490−04texeq3.png),!-2.5 \leq {\rm [M/H]} \leq 0.5$, [ α/Fe] = 0.0,+0.4, ξ = 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