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Synthetic stellar and SSP libraries as templates for Gaia simulations |
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| Authors: | Rosanna Sordo Antonella Vallenari Rosaria Tantalo France Allard Ronny Blomme Jean-Claud Bouret Ines Brott Yves Fremat Christophe Martayan Yassine Damerdji Bengt Edvardsson Eric Josselin Bertrand Plez Oleg Kochukhov Mary Kontizas Ulisse Munari Tenay Saguner Jean Zorec Andreas Schweitzer Paraskevi Tsalmantza |
| Institution: | 1. INAF—Osservatorio Astronomico di Padova, Padua, Italy 2. Astronomy Department, Padova University, Padua, Italy 3. CRAL-ENS, Lyon, France 4. Royal Observatory, Brussels, Belgium 5. CNRS, Marseille, France 6. Sterrenkundig Instituut Utrecht, Utrecht, The Netherlands 7. Univ. De Liege, Liege, Belgium 8. Mid Sweden University, Sundsvall, Sweden 9. GRAAL, Montpellier, France 10. Uppsala University, Uppsala, Sweden 11. Athens University, Athens, Greece 12. Hamburger Sternwarte, Hamburg, Germany 13. MPI für Astronomie, Heidelberg, Germany |
| Abstract: | ESA’s Gaia mission will collect low resolution spectroscopy in the optical range for ～109 objects. Complete and up-to-date libraries of synthetic stellar spectra are needed to built algorithms aimed to automatically derive the classification and the parametrization of this huge amount of data. In addition, libraries of stellar spectra are one of the main ingredients of stellar population synthesis models, aiming to derive the properties of unresolved stellar populations from their integrated light. We present (a) the newly computed libraries of synthetic spectra built by the Gaia community, covering the whole optical range (300–1100 nm) at medium-high resolution of (0.3 nm) for stars spanning the most different types, from M to O, from A-peculiar to Emission lines to White Dwarfs, and (b) the implementation of those libraries in our SSP code (Tantalo in The Initial Mass Function 50 Years Later, 327:235 2005), exploring different stellar evolution models. |
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