42 citations · 63 across the 10 of their papers we have counts for
6 papers · 1 filter
Tracing the assembly histories of galaxy clusters in the nearby universe
César A. Caretta, Heinz Andernach, Marcel Chow-Martínez +10
We have compiled a sample of 67 nearby ( < 0.15) clusters of galaxies, for which on average more than 150 spectroscopic members are available, and, by applying different methods…
What makes a galaxy radio-loud?
R. A. Ortega-Minakata, J. P. Torres-Papaqui, H. Andernach +5
We compare the Spectral Energy Distribution (SED) of radio-loud and radio-quiet AGNs in three different samples observed with SDSS: radio-loud AGNs (RLAGNs), Low Luminosity AGNs (L…
The nature and origin of Narrow Line AGN activity in a sample of isolated SDSS galaxies
R. Coziol, J. P. Torres-Papaqui, I. Plauchu-Frayn +4
We discuss the nature and origin of the nuclear activity observed in a sample of 292 SDSS narrow-emission-line galaxies, considered to have formed and evolved in isolation. All the…
Narrow-Line AGNs: confirming the relationship between metallicity and accretion rate
D. M. Neri-Larios, R. Coziol, J. P. Torres-Papaqui +4
We have selected a sample of 292 SDSS Narrow-Emission-Line galaxies known to have formed and evolved in relative isolation to study the nature and origin of the AGN phenomenon. The…
Relation between activity, morphology and environment for a large sample of SDSS galaxies
R. A. Ortega-Minakata, J. P. Torres-Papaqui, H. Andernach +2
We apply a stellar population synthesis code to the spectra of a large sample of SDSS galaxies to classify these according to their activity (using emission-line diagnostic diagram…
Galaxy activity influenced by the environment in the cluster of galaxies Abell 85
C. A. Caretta, J. M. Islas-Islas, J. P. Torres-Papaqui +3
We analyse the relation between the dynamical state of a cluster of galaxies and the activity (star formation and AGN) of its members. For the case of Abell 85 we find some evidenc…