Bibcode
Vazdekis, A.; Sánchez-Blázquez, P.; Falcón-Barroso, J.; Cenarro, A. J.; Beasley, M. A.; Cardiel, N.; Gorgas, J.; Peletier, R.
Referencia bibliográfica
Stellar Populations – Planning for the Next Decade, Proceedings of the International Astronomical Union, IAU Symposium, Volume 262, p. 65-68
Fecha de publicación:
4
2010
Número de citas
2
Número de citas referidas
2
Descripción
We present SEDs for single-age, single-metallicity stellar populations
(SSPs) covering the full optical spectral range at resolution (FWHM =
2.3Å). These SEDs can be regarded as our base models, as we
combine scaled-solar isochrones with an empirical stellar spectral
library (MILES), which follows the chemical evolution pattern of the
solar neighbourhood. The models rely as much as possible on empirical
ingredients as also employ extensive photometric libraries. Thanks to
the unprecedented parameter coverage of the MILES library we synthesize
SSP SEDs from intermediate- to very-old age regimes, and the metallicity
from super-solar to [M/H] = -2.3, all for a suite of IMF shapes
and slopes. We propose a new Line Index System (LIS), based on
flux-calibrated spectra, to avoid the intrinsic uncertainties associated
with the Lick/IDS system and provide more appropriate, uniform, spectral
resolution.