PEGASE-HR: Stellar Population Synthesis at High Resolution Spectra

Damien Le Borgne (1, 2) , Michel Fioc (3) , Ariane Lançon (4) , Brigitte Rocca-Volmerange (3) , Philippe Prugniel (5) , C. Soubiran (6)

1 DAPNIA - Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée
2 OASU - Observatoire aquitain des sciences de l'univers
3 IAP - Institut d'Astrophysique de Paris
4 ObAS - Observatoire astronomique de Strasbourg
5 CRAL - Centre de Recherche Astrophysique de Lyon
6 M2A 2011

PEGASE-HR is a code aimed at computing synthetic evolutive optical spectra of galaxies with a very high resolution (R=10 000, or dlambda=0.55) in the range Lambda=[4000, 6800] Angstroms. PEGASE-HR is the result of combining the code PEGASE.2 with the high-resolution stellar library ELODIE. This code can also be used at low resolution (R=200) over the range covered by the BaSeL library (from far UV to the near IR), and then produces the same results as PEGASE.2. In PEGASE-HR, the BaSeL library is replaced by a grid of spectra interpolated from the high-resolution ELODIE library of stellar spectra. The ELODIE library is a stellar database of 1959 spectra for 1503 stars, observed with the echelle spectrograph ELODIE on the 193 cm telescope at the Observatoire de Haute Provence.

Domaines: Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]; Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]

Damien Le Borgne, Michel Fioc, Ariane Lançon, Brigitte Rocca-Volmerange, Philippe Prugniel, et al.. PEGASE-HR: Stellar Population Synthesis at High Resolution Spectra. 2011, pp.08008. ⟨hal-00667152⟩