People involved at OAB: Buzzoni
A long-term project has been further carried out in 2003, concerning the computation of a high-resolution synthetic spectral library of stars. The work is in progress with the collaboration of the Mexican colleagues of the Instituto Nacional de Astronomia, Optica y Electronica (INAOE) of Puebla (M. Chavez and E. Bertone), and is part of the PhD thesis of L. Rodriguez, at the INAOE.
The synthetic SEDs rely on the Kurucz (1993) set of model atmospheres, computed by means of the ATLAS9/SYNTHE code (Kurucz 1995), with the ``overshooting'' update according to the Castelli, Gratton and Kurucz (1997) prescriptions.
In its current version, the theoretical grid of stellar spectra covers the wavelength
interval from 912 to 7000 Å (Bertone et al. 2003; Rodriguez-Merino
et al. 2003). The library is divided into two sets of spectra
computed independently. Part I is in the Far UV-Blue spectral region
from 912 to 4500 Å at inverse spectral resolution R = 50,000, while Part II
covers the range 3500-7000 Å at R = 500,000.
The model grid spans metallicity from [M/H] 
to +0.5, and considers
both dwarf and (super)-giant stars (
up to 5.0 dex).
The temperature range goes from 4,000 K to 50,000 K. Our library is
currently the most extended one available in the literature at such
high resolution, and is especially useful for population synthesis
studies in order to address key questions on the overall evolutionary
properties of stellar systems.
A degraded version of the full SED library (at a 2Å FWHM resolution), more suitable for fitting galaxy and other massive stellar aggregates through population synthesis models, has been produced, and implemented in the Buzzoni (1989, 1995) original code to explore SSP models.