1 Department of Astronomy, University of Vienna, Türkenschanzstraße 17, 1180 Vienna, Austria
2 Physics Department, University of California, One Shields Avenue, Davis, CA 95616, USA
3 ESO, Karl-Schwarzschild-Str. 2, 85748 Garching b. München, Germany
4 Lund Observatory, Lund University, Box 43, 22100 Lund, Sweden
5 Max-Planck-Institute for Astrophysics, Karl-Schwarzschild-Str. 1, 85741 Garching b. München, Germany
6 Dr. Karl Remeis-Observatory & ECAP, University Erlangen-Nuremberg, Sternwartstr. 7, 96049 Bamberg, Germany
7 Dept. of Physics, The Catholic University of America, 620 Michigan Ave NE, Washington DC 20064, USA
8 Institut für Astrophysik, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
9 Department of Astronomy and Astrophysics, University of Chicago, 5640 S. Ellis Ave, Chicago, IL 60637, USA
Received: 19 July 2011
Accepted: 19 December 2011
Context. New instrumental capabilities and the wealth of astrophysical information extractable from the near-infrared wavelength region have led to a growing interest in the field of high resolution spectroscopy at 1–5 μm.
Aims. We aim to provide a library of observed high-resolution and high signal-to-noise-ratio near-infrared spectra of stars of various types throughout the Hertzsprung-Russell diagram. This is needed for the exploration of spectral features in this wavelength range and for comparison of reference targets with observations and models.
Methods. High quality spectra were obtained using the CRIRES near-infrared spectrograph at ESO’s VLT covering the range from 0.97 μm to 5.3 μm at high spectral resolution. Accurate wavelength calibration and correction for telluric lines were performed by fitting synthetic transmission spectra for the Earth’s atmosphere to each spectrum individually.
Results. We describe the observational strategy and the current status and content of the library which includes 13 objects. The first examples of finally reduced spectra are presented. This publication will serve as a reference paper to introduce the library to the community and explore the extensive amount of material.
Key words: atlases / infrared: stars / stars: atmospheres / line: identification / methods: data analysis / techniques: spectroscopic
Based on observations collected at the European Organisation for Astronomical Research in the Southern Hemisphere, Chile (084.D-0912, 085.D-0161, 086.D-0066, and 087.D-0195).
The spectra presented in Figs. 3 to 15 are available at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (220.127.116.11) or via http://cdsarc.u-strasbg.fr/viz-bin/qcat?J/A+A/539/A109
© ESO, 2012