561 citations · 6.8k across the 180 of their papers we have counts for
15 papers · 1 filter
Cosmic CARNage I: on the calibration of galaxy formation models
Alexander Knebe, Frazer R. Pearce, Violeta Gonzalez-Perez +31
We present a comparison of nine galaxy formation models, eight semi-analytical and one halo occupation distribution model, run on the same underlying cold dark matter simulation (c…
Revisiting the bulge-halo conspiracy II: Towards explaining its puzzling dependence on redshift
Francesco Shankar, Alessandro Sonnenfeld, Philip Grylls +8
We carry out a systematic investigation of the total mass density profile of massive (Mstar~3e11 Msun) early-type galaxies and its dependence on redshift, specifically in the range…
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…
Supernovae and their host galaxies - V. The vertical distribution of supernovae in disc galaxies
A. A. Hakobyan, L. V. Barkhudaryan, A. G. Karapetyan +6
We present an analysis of the height distributions of the different types of supernovae (SNe) from the plane of their host galaxies. We use a well-defined sample of 102 nearby SNe…
The new semianalytic code GalICS 2.0 - Reproducing the galaxy stellar mass function and the Tully-Fisher relation simultaneously
A. Cattaneo, J. Blaizot, J. E. G. Devriendt +6
GalICS 2.0 is a new semianalytic code to model the formation and evolution of galaxies in a cosmological context. N-body simulations based on a Planck cosmology are used to constru…
A finer view of the conditional galaxy luminosity function and magnitude-gap statistics
Marina Trevisan, Gary A. Mamon
The gap between first and second ranked galaxy magnitudes in groups is often considered a tracer of their merger histories, which in turn may affect galaxy properties, and also ser…
Evolution of compact and fossil groups of galaxies from semi-analytical models of galaxy formation
Amin Farhang, Habib G. Khosroshahi, Gary A. Mamon +2
We compare the mean mass assembly histories of compact and fossil galaxy groups in the Millennium dark matter simulation and an associated semi-analytic galaxy formation model. Tra…
Revisiting the bulge-halo conspiracy I: Dependence on galaxy properties and halo mass
Francesco Shankar, Alessandro Sonnenfeld, Gary A. Mamon +9
We carry out a systematic investigation of the total mass density profile of massive (Mstar>2e11 Msun) early-type galaxies and its dependence on galactic properties and host halo m…
The Distribution of Supernovae Relative to Spiral Arms of Host Disc Galaxies
L. S. Aramyan, A. A. Hakobyan, A. R. Petrosian +7
Using a sample of 215 supernovae (SNe), we analyse their positions relative to the spiral arms of their host galaxies, distinguishing grand-design (GD) spirals from non-GD (NGD) ga…
nIFTy Cosmology: the clustering consistency of galaxy formation models
Arnau Pujol, Ramin A. Skibba, Enrique Gaztañaga +35
We present a clustering comparison of 12 galaxy formation models (including Semi-Analytic Models (SAMs) and Halo Occupation Distribution (HOD) models) all run on halo catalogues an…