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GALICS II : The [ α/Fe]-mass relation in elliptical galaxies
(2009-10-03)
Aims. We test whether the mass-and σ-[α/Fe] relations in the stellar populations of early-type galaxies can be reproduced by a cosmologically motivated assembly history for spheroids.Methods. We implement a detailed treatment ...
Identifying the progenitor set of present-day early-type galaxies : A view from the standard model
(2009-08-01)
We present a comprehensive theoretical study, using a semi-analytical model within the standard LCDM framework, of the photometric properties of the progenitors of present-day early-type galaxies in the redshift range 0 ...
AGN jet-induced feedback in galaxies - II : Galaxy colours from a multicloud simulation
(2009-06-01)
We study the feedback from an active galactic nucleus (AGN) on stellar formation within its host galaxy, mainly using one high-resolution numerical simulation of the jet propagation within the interstellar medium (ISM) of ...
Evidence for recent star formation in BCGs : A correspondence between blue cores and UV excess
(2009-05-01)
We present a joint analysis of near-ultraviolet (NUV) data from the GALEX (Galaxy Evolution Explorer) mission and (optical) colour profiles for a sample of seven brightest cluster galaxies (BCGs) in the Canadian Cluster ...
The role of minor mergers in the recent star formation history of early-type galaxies
(2009-04-01)
We demonstrate that the large scatter in the ultraviolet (UV) colours of intermediate-mass early-type galaxies in the local Universe and the inferred low-level recent star formation (RSF) in these objects can be reproduced ...
Destruction of molecular gas reservoirs in early-type galaxies by active galactic nucleus feedback
(2009)
Residual star formation at late times in early-type galaxies and their progenitors must be suppressed in order to explain the population of red, passively evolving systems we see today. Likewise, residual or newly accreted ...