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- Publications
- Influence
Profiles of dark haloes: evolution, scatter and environment
- J. Bullock, T. Kolatt, +5 authors A. Dekel
- Physics
- 16 August 1999
We study dark-matter halo density profiles in a high-resolution N-body simulation of aCDM cosmology. Our statistical sample contains �5000 haloes in the range 10 11 10 14 h −1 M⊙ and the resolution… Expand
A Universal Angular Momentum Profile for Galactic Halos
- J. Bullock, A. Dekel, +4 authors J. Primack
- Physics
- 1 November 2000
We study the angular momentum profiles of a statistical sample of halos drawn from a high-resolution N-body simulation of the ΛCDM cosmology. We find that the cumulative mass distribution of specific… Expand
Concentrations of Dark Halos from Their Assembly Histories
- R. Wechsler, J. Bullock, J. Primack, A. Kravtsov, A. Dekel
- Physics
- 9 August 2001
We study the relation between the density profiles of dark matter halos and their mass assembly histories using a statistical sample of halos in a high-resolution N-body simulation of the ΛCDM… Expand
The Universal Stellar Mass-Stellar Metallicity Relation for Dwarf Galaxies
- E. Kirby, J. Cohen, +10 authors D. C. Centre
- Physics
- 2 October 2013
We present spectroscopic metallicities of individual stars in seven gas-rich dwarf irregular galaxies (dIrrs), and we show that dIrrs obey the same mass-metallicity relation as the dwarf spheroidal… Expand
Accurate masses for dispersion-supported galaxies
- J. Wolf, G. Martinez, +5 authors Frank F. Avedo
- Physics
- 21 August 2009
We derive an accurate mass estimator for dispersion-supported stellar systems and demonstrate its validity by analysing resolved line-of-sight velocity data for globular clusters, dwarf galaxies and… Expand
Tracing Galaxy Formation with Stellar Halos. I. Methods
- J. Bullock, K. Johnston
- Physics
- 20 June 2005
If the favored hierarchical cosmological model is correct, then the Milky Way system should have accreted � 100– 200 luminous satellite galaxies in the past � 12 Gyr. We model this process using a… Expand
The shape of dark matter haloes : dependence on mass, redshift, radius and formation
- B. Allgood, R. Flores, +4 authors J. Bullock
- Physics
- 24 August 2005
Using six high-resolution dissipationless simulations with a varying box size in a flat Lambda cold dark matter (ACDM) universe, we study the mass and redshift dependence of dark matter halo shapes… Expand
Resolving the Structure of Cold Dark Matter Halos
- A. Klypin, A. Kravtsov, J. Bullock, J. Primack
- Physics
- 24 June 2000
We present results of a convergence study in which we compare the density profiles of cold dark matter halos simulated with varying mass and force resolutions. We show that although increasing the… Expand
Multiphase galaxy formation: high-velocity clouds and the missing baryon problem
- A. Maller, J. Bullock
- Physics
- 28 June 2004
The standard treatment of cooling in Cold Dark Matter halos assumes that all of the gas within a “cooling radius” cools and contracts monolithically to fuel galaxy formation. Here we take into… Expand
A common mass scale for satellite galaxies of the Milky Way
- L. Strigari, J. Bullock, +4 authors M. Walker
- Physics, Medicine
- Nature
- 27 August 2008
The Milky Way has at least twenty-three known satellite galaxies that shine with luminosities ranging from about a thousand to a billion times that of the Sun. Half of these galaxies were discovered… Expand