Galaxy Interactions and their role at moderate environments.

PEREZ J.; TISSERA P.; PADILLA N.; ALONSO S.; LAMBAS, D. G.

Galaxies in isolation: Exploring Nature vs Nurture

ASP Conference Series

Año: 2010; p. 121 - 125

Our conception of galaxy evolution inside clusters have recentlychanged due to an increasing evidence suggesting a pre-processing of galaxies at moderate densities. Based on the high frequency of interacting systems found at intermediate densities, we use the SDSS-DR4 data to analyse the role of close galaxy interactions as environmental mechanisms to operate in the evolutionarytransformations. We explore the properties of galaxy pairs at different local and global density environments, comparing them with those of isolated galaxies in an unbiased control sample.