New high resolution synthetic stellar libraries for the Gaia mission .
Abstract
High resolution synthetic stellar libraries are of fundamental importance for the preparation of the Gaia Mission. We present new sets of spectral stellar libraries covering two spectral ranges: 300/1100 nm at 0.1 nm resolution, and 840/890 nm at 0.001 nm resolution. These libraries span a wide atmospheric parameters range, from super-metal-rich to very metal-poor (-5.0 <[Fe/H]<+1.0), from cool to hot (T_{eff }=3000-50000 K) stars, including peculiar abundance variations. Thanks to their spectral resolution, spectral type coverage and number of models, they represent a substantial improvement over previous libraries used in population synthesis models and in atmospheric analysis.
- Publication:
-
Memorie della Societa Astronomica Italiana
- Pub Date:
- 2009
- DOI:
- 10.48550/arXiv.0812.0297
- arXiv:
- arXiv:0812.0297
- Bibcode:
- 2009MmSAI..80..103S
- Keywords:
-
- Stars: synthetic spectra;
- Stars: atmospheres;
- Astrophysics
- E-Print:
- To appear in "52 Sait Meeting", Memorie della Societa` Astronomica Italiana vol 10