5 papers
The effect of the Galactic gas distribution on the expected cosmic rays spectrum
M. Mollá, M. Aguilar, J. Alcaraz +11
We will analyze the importance of varying the diffuse gas radial distribution on the resulting expected cosmic rays spectrum. We use the recent HI density data published by Nakanis…
Predicted chemical evolution for spiral disks from their observed rotation curves
M. Molla, I. Marquez
The rotation curves for a sample of 67 spiral galaxies observed by Marquez et al(2002) have been used as input for the multiphase chemicale volution model. By using N[II]/Halpha as…
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…
How to determine the star formation histories in spiral disks
M. Molla, E. Hardy
We have computed 500 chemical evolution models for the galaxy NGC 4303. With the obtained evolutionary histories and a synthesis model we have also calculated the spectral indices…