INVESTIGADORES
DIAZ Maria Eugenia
congresos y reuniones científicas
Título:
Faint galaxy population around Fossil Groups
Autor/es:
KANAGUSUKU, MARÍA JOSÉ; DIAZ GIMENEZ, EUGENIA; ZANDIVAREZ, ARIEL
Lugar:
La serena
Reunión:
Workshop; Galaxy Groups: Laboratories to study galaxy evolution; 2014
Institución organizadora:
Physics Department of the University of La Serena
Resumen:
The main objective of this work is to study and characterize the faint galaxy population in fossil systems from a semianalytical point of view. To do this, we performed a statistical study of fossil groups in mock galaxy catalogues constructed from the Millennium II simulation (MII) plus a semianalytical model of galaxy formation. We identifi ed groups in this catalogue, and constructed two fossil group samples, and theircorresponding control samples (non-fossil groups), to perform comparative studies between fossil and non-fossil groups on the faint galaxy population. These analyses were performed for di erent evolutionary stages, from z=0 to z=1.08 (8Gys), reaching fossil group formation times. Our results suggest that the formation of the magnitude gap between the brightest galaxies has aff ected the evolution of the faint galaxy population in fossil systems.
