42 citations · 149 across the 6 of their papers we have counts for
6 papers · 1 filter
Colour gradients in cluster ellipticals at z~1.4: the hidden content of the galaxy central regions
Federica Ciocca, Paolo Saracco, Adriana Gargiulo +1
We present F775W-F850LP (rest-frame UV-U) and F850LP-F160W (rest-frame U-R) colour gradients for a sample of 17 elliptical galaxies morphologically selected in the cluster XMMU J22…
Cluster and field elliptical galaxies at z~1.3. The marginal role of the environment and the relevance of the galaxy central regions
P. Saracco, A. Gargiulo, F. Ciocca +1
We compared the properties of 56 elliptical galaxies selected from three clusters at with those of field galaxies in the GOODS-S (~30), COSMOS (~180) and CANDELS (~220)…
Ultramassive dense early-type galaxies: velocity dispersions and number density evolution since z=1.6
A. Gargiulo, P. Saracco, S. Tamburri +2
In this paper we investigate the mass assembly history of ultramassive (Mstar > 10^11Msun) dense (Sigma = Mstar/(2*pi*Re^2) > 2500 Msun/pc^2) early-type galaxies (ETGs) over the la…
Old age and super-solar metallicity in a massive z~1.4 early-type galaxy from VLT/X-Shooter spectroscopy
Ilaria Lonoce, Marcella Longhetti, Claudia Maraston +14
We present the first estimate of age, stellar metallicity and chemical abundance ratios, for an individual early-type galaxy at high-redshift (z = 1.426) in the COSMOS field. Our a…
The population of early-type galaxies: how it evolves with time and how it differs from passive and late-type galaxies
S. Tamburri, P. Saracco, M. Longhetti +3
The aim of our analysis is twofold. On the one hand we are interested in addressing whether a sample of ETGs morphologically selected differs from a sample of passive galaxies in t…
Lower mass normalization of the stellar initial mass function for dense massive early-type galaxies at z ~ 1.4
A. Gargiulo, P. Saracco, M. Longhetti +3
This paper aims at understanding if the normalization of the stellar initial mass function (IMF) of massive early-type galaxies (ETGs) varies with cosmic time and/or with mean stel…