230 citations · 1.2k across the 35 of their papers we have counts for
8 papers · 1 filter
Fossil Groups Origins III. Characterization of the sample and observational properties of fossil systems
S. Zarattini, R. Barrena, M. Girardi +15
(Abridged) Fossil systems are group- or cluster-sized objects whose luminosity is dominated by a very massive central galaxy. In the current cold dark matter scenario, these object…
Fossil Groups Origins III. The relation between optical and X-ray luminosities
M. Girardi, J. A. L. Aguerri, S. De Grandi +11
This study is part of the FOssil Groups Origin (FOGO) project which aims at carrying out a systematic and multiwavelength study of a large sample of fossil systems. Here we focus o…
Searching for nuclear stellar discs in simulations of star cluster mergers
E. Portaluri, E. M. Corsini, L. Morelli +4
The nuclei of galaxies often host small stellar discs with scale-lengths of a few tens of parsecs and luminosities up to 10^7 Lsun. To investigate the formation and properties of n…
Further evidence for large central mass-to-light ratios in massive early-type galaxies
E. M. Corsini, G. A. Wegner, J. Thomas +3
We studied the stellar populations, distribution of dark matter, and dynamical structure of a sample of 25 early-type galaxies in the Coma and Abell 262 clusters. We derived dynami…
On the Correlations between Galaxy Properties and Supermassive Black Hole Mass
A. Beifiori, S. Courteau, E. M. Corsini +1
We use a large sample of upper limits and accurate estimates of supermassive black holes masses coupled with libraries of host galaxy velocity dispersions, rotational velocities an…
Fossil Groups Origins: I. RX J105453.3+552102 a very massive and relaxed system at z~0.5
J. A. L. Aguerri, M. Girardi, W. Boschin +11
The most accepted scenario for the origin of fossil groups (FGs) is that they are galaxy associations in which the merging rate was fast and efficient. These systems have assembled…
Multiband photometric decomposition of nuclear stellar disks
L. Morelli, M. Cesetti, E. M. Corsini +4
Small and bright stellar disks with scale lengths of few tens of parsec are known to reside in the center of galaxies. They are believed to have formed in a dissipational process a…
The ultraviolet flare at the center of the elliptical galaxy NGC 4278
A. Cardullo, E. M. Corsini, A. Beifiori +5
A large fraction of otherwise normal galaxies shows a weak nuclear activity. One of the signatures of the low-luminosity active galactic nuclei (LLAGNs) is the ultraviolet variabil…