The X-Shooter spectral library

Y. P. Chen1*, S. C. Trager1, R. F. Peletier1, A. Lanḉon2, Ph. Prugniel3 and M. Koleva4,3
1Kapteyn Astronormical Institute, University of Groningen, Postbus 800, 9700 AV, Groningen, Netherlands
2Observatoire Astronomique, 11, rue de l'Université, F-67000 Strasbourg, France
3Université de Lyon, Université Lyon 1, 69622 Villeurbanne, France; CRAL, Observatoire de Lyon, CNRS UMR 5574, 69561 Saint-Genis Laval, France
4Sterrenkundig Observatorium, Ghent University, Belgium

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Abstract

We are building a new spectral library with the X-Shooter instrument on ESO’s VLT: XSL, the X-Shooter Spectral Library. We present our progress in building XSL, which covers the wavelength range from the near-UV to the near-IR with a resolution of R ~ 10000. As of now we have collected spectra for nearly 240 stars. Stellar atmospheric parameters for a large fraction of these stars have been determined using the full-spectrum fitting package ULySS together with the stellar spectral library ELODIE as templates.

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Keywords : spectral library – instrument: X-Shooter – stars: fundamental parameters