8 papers
Galactic Evolution along the Hubble Sequence.I. A grid of models parametrized by initial galaxy mass distribution
M. Molla, A. I. Diaz, F. Ferrini
We present a generalization of the multiphase chemical evolution model applied to a wide set of theoretical galaxies with different masses and morphological types. This generalized…
Chemical Evolution of CNO abundances
M. Gavilan, M. Molla
New low and intermediate star yields calculated by Buell (1997) are evaluated by using them in a Galactic Chemical Evolution model. We analyze their effects on CNO elemental abunda…
The Stellar Populations in spiral disks.III. Constraining their evolutionary histories
Mercedes Molla, Eduardo Hardy
We study the old problem of the uniqueness of chemical evolution models by analyzing a set of multiphase models for the galaxy NGC 4303 computed for a variety of plausible physical…
Chemical Evolution along the Hubble sequence
Mercedes Molla, A. Diaz, Federico Ferrini
We show a grid of multiphase models whose results are valid for any spiral galaxy, using as input the luminosity or the rotation velocity and the morphological type, measured by th…
Models for the interpretation of CaT and the blue Spectral Indices in Elliptical Nuclei
M. Molla, M. L. Garcia-Vargas
We present a grid of theoretical models where the calculation of absorption line spectral indices in both the blue and red wavelength ranges is done with the same evolutionary synt…
Analysis of Balmer Profiles of early type stars
Mercedes Molla, Angeles I. Diaz, Mar Alvarez Alvarez +1
The spectral energy distribution (SED) of recent star formation regions is dominated by the more massive and early stars (O and B types). These stars show large and very significan…