278 citations · 1.4k across the 40 of their papers we have counts for
10 papers · 1 filter
AGN feedback in dwarf galaxies?
Gohar Dashyan, Joseph Silk, Gary A. Mamon +2
Dwarf galaxy anomalies, such as their abundance and cusp-core problems, remain a prime challenge in our understanding of galaxy formation. The inclusion of baryonic physics could p…
Galaxy Cluster Mass Reconstruction Project: III. The impact of dynamical substructure on cluster mass estimates
L. Old, R. Wojtak, F. R. Pearce +14
With the advent of wide-field cosmological surveys, we are approaching samples of hundreds of thousands of galaxy clusters. While such large numbers will help reduce statistical un…
Structural and dynamical modeling of WINGS clusters. I. The distribution of cluster galaxies of different morphological classes within regular and irregular clusters
Antonio Cava, Andrea Biviano, Gary A. Mamon +8
[Abridged] We use the WINGS database to select a sample of 67 nearby galaxy clusters with at least 30 spectroscopic members each. 53 of these clusters do not show evidence of subst…
On stellar mass loss from galaxies in groups and clusters
Édouard Tollet, Andrea Cattaneo, Gary Mamon +2
We estimate the stellar mass that satellite galaxies lose once they enter groups (and clusters) by identifying groups in a high-resolution cosmological N-body simulation, assigning…
Group galaxy number density profiles far out: is the 'one-halo' term NFW out to virial radii?
Marina Trevisan, Gary A. Mamon, Diego H. Stalder
While the density profiles (DPs) of CDM haloes obey the NFW law out to roughly one virial radius, , the structure of their outer parts is still poorly understood, s…
Theia: Faint objects in motion or the new astrometry frontier
The Theia Collaboration, Celine Boehm, Alberto Krone-Martins +96
In the context of the ESA M5 (medium mission) call we proposed a new satellite mission, Theia, based on relative astrometry and extreme precision to study the motion of very faint…