On the buildup of massive early-type galaxies at z ⪉ 1. I. Reconciling their hierarchical assembly with mass downsizing
Context. Several studies have tried to ascertain whether the increase in abundance of the early-type galaxies (E-S0a's) with time is mainly due to major mergers, but have reached opposite conclusions. Aims: We have tested it directly through semi-analytical modelling, quantifying the possible contribution of the observed major mergers to the
Eliche-Moral, M. C. et al.
Fecha de publicación:
9
2010