MILES SSP models



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Vazdekis, A. and Sánchez Blázquez, P. and Falcón Barroso, J. and Cenarro, A. J. and Beasley, M. A. and Cardiel López, Nicolás and Gorgas García, Francisco Javier and Peletier, R. (2009) MILES SSP models. Stellar populations: planning for the next decade, 5 (262). pp. 65-68. ISSN 1743-9213

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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.

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© International Astronomical Union 2010. Symposium of the International-Astronomical Union (262nd; 2009; Rio de Janeiro, Brazil).

Uncontrolled Keywords:Galaxies abundances; Star clusters galaxies; Dwarf galaxies; Elliptical and lenticular galaxies; CD galaxies; Evolution galaxies; Stellar content
Subjects:Sciences > Physics > Astrophysics
ID Code:60056
Deposited On:23 Apr 2020 11:54
Last Modified:23 Apr 2020 11:54

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