74 citations · 554 across the 21 of their papers we have counts for
6 papers · 1 filter
Comparing galaxy populations in compact and loose groups of galaxies
Valeria Coenda, Hernan Muriel, Hector J. Martinez
We perform a comparison of the properties of galaxies in compact groups, loose groups and in the field to deepen our understanding of the physical mechanisms acting upon galaxy evo…
The dynamical state of galaxy groups and their luminosity content
Hector J. Martinez, Ariel Zandivarez
We analyse the dependence of the luminosity function of galaxies in groups (LF) on group dynamical state. We use the Gaussianity of the velocity distribution of galaxy members as a…
Relating bars with the environment in the nearby Universe
Hector J. Martinez, Hernan Muriel
We study the correlation between the fraction of barred spiral galaxies and environmental parameters of galaxies to understand in which environments the bars are more commonly foun…
Luminosity function of galaxies in groups in the SDSS DR7: the dependence on mass, environment and galaxy type
Ariel Zandivarez, Hector J. Martinez
We perform an analysis of the luminosities of galaxies in groups in the SDSS DR7. We analyse the luminosity function (LF) as a function of group mass for different photometric band…
The environmental dependence of the red galaxy sequence
Hector J. Martinez, Valeria Coenda, Hernan Muriel
The dependence of the sequence of red galaxies (RS) with the environment is investigated using field, group, and cluster galaxies drawn from the SDSS. Our work focuses in studying…
Using the large scale quasar clustering to constrain flat quintessential universes
Ariel Zandivarez, Hector J. Martinez
We search for the most suitable set of cosmological parameters that describes the observable universe. The search includes the possibility of quintessential flat universes, i.e., t…