209 citations · 280 across the 9 of their papers we have counts for
5 papers · 1 filter
Activity induced by Gravitational Interaction in Galaxy Pairs
D. Dultzin, J. J. Gonzalez, Y. Krongold +6
A systematic study of the nuclear emission of a sample of 97 spirals in isolated galaxy pairs with mixed morphology (E+S) shows that: 1) AGN activity is found in 40% of the spiral…
Stellar populations of early-type galaxies in different environments II. Ages and metallicities
P. Sanchez-Blazquez, J. Gorgas, N. Cardiel +1
This is the second paper of a series devoted to study the stellar content of early-type galaxies. The goal of the series is to set constraints on the evolutionary status of these o…
Differences in carbon and nitrogen abundances between field and cluster early-type galaxies
P. Sanchez-Blazquez, J. Gorgas, N. Cardiel +2
Central line-strength indices were measured in the blue spectral region for a sample of 98 early-type galaxies in different environments. For most indices (Mgb and <Fe> in particul…
New Evolutionary Synthesis code. An application to the irregular galaxy NGC 1560
Gerardo A. Vazquez, Leticia Carigi, J. J. Gonzalez
We have developed a new evolutionary synthesis code, which incorporates the output from chemical evolution models. We compare results of this new code with other published codes, a…
Spectroscopic Gradients in Elliptical Galaxies
J. Jesus Gonzalez, Javier Gorgas
Preliminary results based on a large compilation of line-strength profiles are presented and discussed. Elliptical galaxies (Es) with strong central Mg show steeper line-streng…