IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
artículos
Título:
Evolution of Stellar Population: Environments vs galaxy interactions
Autor/es:
PEREZ J.; TISSERA P.; PADILLA N.; ALONSO S.; LAMBAS, D. G.
Revista:
IAUS
Editorial:
The International Astronomical Union (IAU)
Referencias:
Año: 2010 vol. 262 p. 408 - 409
ISSN:
1743-9213
Resumen:
Several authors have studied the dependence of galaxy properties on
environment in order to understand which mechanisms operate in the
galaxy evolution. Recently, some of them have proposed that intermediate
densities could be sites where local environment influences the
transition of galaxies onto the red-sequence, as opposed to mechanisms
that operate on cluster scales. Based on the evidence that interacting
and merging systems are frequent at intermediate densities, we use the
SDSS-DR4 data to analyse the role of close galaxy interactions as an
environmental process which could contribute to lead evolutionary
transformations. We explore the properties of galaxy pairs at different
local and global density environments, comparing them with those of
isolate galaxies in an unbiased control sample (CS).