220 citations · 887 across the 30 of their papers we have counts for
7 papers · 1 filter
Circumnuclear Regions of Star Formation in Early Type Galaxies
Angeles I. Diaz, Elena Terlevich, Guillermo F. Hagele +1
Circumnuclear star forming regions, also called hotspots, are often found in the inner regions of some spiral galaxies where intense processes of star formation are taking place. I…
The role of the star formation on the nitrogen abundance evolution
M. Mollá, J. M. Vílchez, A. I. Díaz +1
We analyze the evolution of nitrogen resulting from a set of spiral and irregular galaxy models computed for a large number of input mass radial distributions and with various star…
A Spectroscopic Study of the Near-IR [SIII] Lines in a Sample of HII Galaxies: chemical abundances
C. Kehrig, J. M. Vilchez, E. Telles +2
A detailed spectroscopic study, from lambda 3700 A to 1 um, was performed for a sample of 34 HII galaxies in order to derive fundamental parameters for their HII regions and ionizi…
Structural parameters of nearby emission-line galaxies
Miguel Sanchez-Portal, Angeles I Diaz, Elena Terlevich +1
We present the results of an investigation on the main structural properties derived from VRI and Halpha surface photometry of galaxies hosting nuclear emission-line regions (inclu…
On the physical origin of dark matter density profiles
Y. Ascasibar, G. Yepes, S. Gottloeber +1
The radial mass distribution of dark matter haloes is investigated within the framework of the spherical infall model. We present a new formulation of spherical collapse including…
The radial structure of galaxy groups and clusters
Y. Ascasibar, G. Yepes, V. Mueller +1
Simple self-consistent models of galaxy groups and clusters are tested against the results of high-resolution adiabatic gasdynamical simulations. We investigate two models based on…