3k citations · 12.7k across the 54 of their papers we have counts for
35 papers · 1 filter
Large scale galactic turbulence: can self-gravity drive the observed HI velocity dispersions?
Oscar Agertz, George Lake, Romain Teyssier +3
Observations of turbulent velocity dispersions in the HI component of galactic disks show a characteristic floor in galaxies with low star formation rates and within individual gal…
The Magellanic Group and the Seven Dwarfs
Elena D'Onghia, George Lake
The Magellanic Clouds were the largest members of a group of dwarf galaxies that entered the Milky Way (MW) halo at late times. This group, dominated by the LMC, contained ~4% of t…
Detecting the Milky Way's Dark Disk
T. Bruch, J. Read, L. Baudis +1
In LambdaCDM, massive satellites are dragged into the disk-plane by dynamical friction where they dissolve into a stellar thick disk and a more massive dark matter disk. The distin…
Thin, thick and dark discs in LCDM
J. I. Read, G. Lake, O. Agertz +1
In a LCDM cosmology, the Milky Way accretes satellites into the stellar disc. We use cosmological simulations to assess the frequency of near disc plane and higher inclination accr…
Small Dwarf Galaxies Within Larger Dwarfs: Why Some Are Luminous While Most Go Dark
Elena D'Onghia, George Lake
We consider the possibility that the Magellanic Clouds were the largest members of a group of dwarf galaxies that entered the Milky Way (MW) halo at late times. Seven of the eleven…
Universal Substructure Distributions in LCDM halos: Can we find a Fossil Group?
E. D'Onghia, A. V. Maccio', G. Lake +2
We use large cosmological N-body simulations to study the subhalo population in galaxy group sized halos. In particular, we look for fossil group candidates with typical masses ~10…
Eclipse Prediction and Orbit Improvement for Asteroids: Theory and Application to Near Earth Asteroids
P. Tricarico, N. C. Hearn, G. Lake +1
Asteroids can be eclipsed by other bodies in the Solar System, but no direct observation of an asteroid eclipse has been reported to date. We describe a statistical method to predi…
Dark Matter Subhaloes in Numerical Simulations
Darren Reed, Fabio Governato, Thomas Quinn +3
We use cosmological LCDM numerical simulations to model the evolution of the substructure population in sixteen dark matter haloes with resolutions of up to seven million particles…
Evolution of the Density Profiles of Dark Matter Haloes
Darren Reed, Fabio Governato, Licia Verde +5
We use numerical simulations in a Lambda CDM cosmology to model density profiles in a set of 16 dark matter haloes with resolutions of up to 7 million particles within the virial r…
Cold Dark Matter's Small Scale Crisis Grows Up
Elena D'Onghia, George Lake
The Cold Dark Matter (CDM) theory predicts a wealth of substructure within dark halos. These predictions match observations of galaxy clusters like the nearby Virgo cluster. Howeve…
Evolution of the Mass Function of Dark Matter Haloes
Darren Reed, Jeffrey Gardner, Thomas Quinn +4
We use a high resolution CDM numerical simulation to calculate the mass function of dark matter haloes down to the scale of dwarf galaxies, back to a redshift of fifteen, in a 5…
Pre-heating the ICM in high resolution simulations: the effect on the gas entropy
S. Borgani, F. Governato, J. Wadsley +5
We present results from high-resolution Tree+SPH simulations of galaxy clusters and groups, aimed at studying the effect of non-gravitational heating on the entropy of the ICM. We…
Dark matter in Draco and the Local Group: Implications for direct detection experiments
Ben Moore, Carlos Calcaneo-Roldan, Joachim Stadel +4
We use a cosmological simulation of the Local Group to make quantitative and speculative predictions for direct detection experiments. Cold dark matter (CDM) halos form via a compl…
The Metamorphosis of Tidally Stirred Dwarf Galaxies
Lucio Mayer, Fabio Governato, Monica Colpi +5
We present results from high-resolution N-Body/SPH simulations of rotationally supported dwarf irregular galaxies moving on bound orbits in the massive dark matter halo of the Milk…
Tidal stirring and the origin of dwarf spheroidals in the Local Group
Lucio Mayer, Fabio Governato, Monica Colpi +5
N-Body/SPH simulations are used to study the evolution of dwarf irregular galaxies (dIrrs) entering the dark matter halo of the Milky Way or M31 on plunging orbits. We propose a ne…
Formation of Proto-Globular Cluster Clouds by Thermal Instability
Hyesung Kang, George Lake, Dongsu Ryu
Many models of globular cluster formation assume the presence of cold dense clouds in early universe. Here we re-examine the Fall & Rees (1985) model for formation of proto-globula…
Density profiles and substructure of dark matter halos: converging results at ultra-high numerical resolution
Sebastiano Ghigna, Ben Moore, Fabio Governato +3
Can N-body simulations reliably determine the structural properties of dark matter halos? Focussing on a Virgo-sized galaxy cluster, we increase the resolution of current ``high re…
Dark Matter Substructure in Galactic Halos
Ben Moore, Sebastiano Ghigna, Fabio Governato +4
We use numerical simulations to examine the substructure within galactic and cluster mass halos that form within a hierarchical universe. Clusters are easily reproduced with a stee…
Cold collapse and the core catastrophe
Ben Moore, Tom Quinn, Fabio Governato +2
We show that a universe dominated by cold dark matter fails to reproduce the rotation curves of dark matter dominated galaxies, one of the key problems that it was designed to reso…
The fate of LSB galaxies in clusters and the origin of the diffuse intra-cluster light
Ben Moore, George Lake, Joachim Stadel +1
We follow the evolution of disk galaxies within a cluster that forms hierarchically in a standard cold dark matter N-body simulation. At a redshift z=0.5 we select several dark mat…
Substructure in Dark Halos: Orbital Eccentricities and Dynamical Friction
Frank C. van den Bosch, Geraint F. Lewis, George Lake +1
We examine the distributions of eccentricities of orbits within mass distributions like those we see for galaxies and clusters. A comprehensive understanding of these orbital prope…
On the Survival and Destruction of Spiral Galaxies in Clusters
Ben Moore, George Lake, Thomas Quinn +1
We follow the evolution of disk galaxies within a cluster that forms hierarchically in a cold dark matter N-body simulation. At a redshift z=0.5 we select several dark matter halos…
N-point correlations in CDM and CDM Simulations
Istvan Szapudi, Thomas Quinn, Joachim Stadel +1
Higher order statistics are investigated in ()CDM universes by analyzing $500\mpc$ high resolution tree N-body simulations with both , and . The amplitudes of the N-…
Dark Matter Halos within Clusters
Sebastiano Ghigna, Ben Moore, Fabio Governato +3
We examine the properties of dark matter halos within a rich galaxy cluster using a high resolution simulation that captures the cosmological context of a cold dark matter universe…