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Star formation and nuclear activity in close pairs of early-type galaxies
(2009-11-01)
We extract from the Sloan Digital Sky Survey a sample of 347 systems involving early-type galaxies separated by less than 30 kpc, in projection, and 500 km s−1 in radial velocity. These close pairs are likely progenitors ...
On the formation of massive galaxies : A simultaneous study of number density, size and intrinsic colour evolution in GOODS
(2009-07-01)
The evolution of number density, size and intrinsic colour is determined for a volume-limited sample of visually classified early-type galaxies selected from the Hubble Space Telescope/Advanced Camera for Surveys images ...
Exploring the formation of spheroidal galaxies out to z ∼ 1.5 in GOODS
(2009-05-01)
The formation of massive spheroidal galaxies is studied on a visually classified sample extracted from the Advanced Camera for Surveys/Hubble Space Telescope (ACS/HST) images of the Great Observatories Origins Deep Survey ...