XSL, the X-Shooter Spectral Library: Overview and status

S. C. Trager1*, Y.-P. Chen1, A. Gonneau2, R. F. Peletier1, A. Lançon2, S. Meneses-Goytia1, A. Vazdekis3, and the XSL Team
1Kapteyn Astronomical Institute, University of Groningen, Postbus 800, NL-9700 Groningen, The Netherlands
2Observatoire Astronomique de Strasbourg, Université de Strasbourg, CNRS UMR 7550, 11 rue de l’Université, F-67000 Strasbourg, France
3Instituto de Astrofísica de Canarias, C/ Vía Láctea s/n, E-38205 La Laguna, Tenerife, Spain

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Abstract

We present an overview of and status report on XSL, the XShooter Spectral Library. XSL is an ESO Large Programme that is using the X-Shooter three-beam spectrograph to collect moderate-resolution (R = 7000–11000), high signal-to-noise spectra of more than 700 stars across the Hertzsprung-Russell diagram with a large range of compositions. XSL is designed primarily as an input library for stellar population synthesis models but has already been used for a wider range of topics, a few of which are discussed here. The first data release of XSL, representing nearultraviolet and optical spectra of the first ~ 250 stars, will be available in early 2014, with later data releases to include the near-infrared spectra and the complete library.

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Keywords : stars: atmospheres — galaxies: stellar content— catalogs