# At the heart of the matter: the origin of bulgeless dwarf galaxies and Dark Matter cores

@inproceedings{Governato2009AtTH,
title={At the heart of the matter: the origin of bulgeless dwarf galaxies and Dark Matter cores},
author={Fabio Governato and Chris B. Brook and Lucio Mayer and Alyson M. Brooks and George F. Rhee and James Wadsley and Patrik Jonsson and Beth Willman and Gregory S. Stinson and Thomas Quinn and Piero Madau},
year={2009}
}
Astronomy Department, University of Washington, Seattle, WA 98195, US 2 Peremiah Horrocks Institute, University of Central Lancashire, Preston, Lancashire,PR1 2HE, UK Institute for Theoretical Physics, University of Zurich, Winterthurestrasse 190, CH-8057 Zürich. 4 Theoretical Astrophysics, California Institute of Technology, MC 350-17, Pasadena, CA, 91125 US Department of Physics and Astronomy, University of Nevada, Las Vegas, NV US Department of Physics and Astronomy, McMaster University… Expand
126 Citations

#### Paper Mentions

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#### References

SHOWING 1-10 OF 32 REFERENCES
The Rotation Curves of Dwarf Galaxies: A Problem for Cold Dark Matter?
We address the issue of accuracy in recovering density profiles from observations of rotation curves of galaxies. We observe and analyze our models in much the same way as observers do the realExpand
Effects of supernova feedback on the formation of galaxy discs
We use cosmological simulations in order to study the effects of supernova (SN) feedback on the formation of a Milky Way-type galaxy of virial mass ∼ 10 12 h -1 M ⊙ . We analyse a set of simulationsExpand
Bulges versus discs: the evolution of angular momentum in cosmological simulations of galaxy formation
• Physics
• 2008
We investigate the evolution of angular momentum in simulations of galaxy formation in a cold dark matter universe. We analyse two model galaxies generated in the N-body/hydrodynamic simulations ofExpand
DWARF GALAXIES OF THE LOCAL GROUP
▪ Abstract The Local Group dwarf galaxies offer a unique window to the detailed properties of the most common type of galaxy in the Universe. In this review, I update the census of Local Group dwarfsExpand
The inner structure of ACDM halos
We have used high resolution N-body simulations to investigate the internal properties of Cold Dark Matter (CDM) halos with virial masses of M(_200) ~ 10(^10) M(_o) at z = 0, comparable to those ofExpand
Testing Cold Dark Matter with the Low-Mass Tully-Fisher Relation
• Physics
• 2008
In most cosmological theories, the galaxy mass function at small masses is related to the small-scale matter power spectrum. The circular velocity function (closely related to the mass function) isExpand
OBSERVATIONAL AND THEORETICAL CONSTRAINTS ON SINGULAR DARK MATTER HALOS
• Physics
• 1994
The distribution of dark matter around galactic or cluster halos has usually been assumed to be approximately isothermal with a non-zero core radius, which is expected to be of the order of the sizeExpand
FLAT-CORED DARK MATTER IN CUSPY CLUSTERS OF GALAXIES
• Physics
• 2003
Sand and coworkers have measured the central density profile of cluster MS 213723 with gravitational lensing and velocity dispersion and removed the stellar contribution with a reasonable M/L. TheExpand
The Effect of the Interstellar Model on Star Formation Properties in Galactic Disks
• Physics
• 2007
We studied the effect of interstellar gas conditions on global galaxy simulations by considering three different models for the ISM. Our first model included only radiative cooling down to 300 K, ourExpand
Toward First-Principle Simulations of Galaxy Formation: I. How Should We Choose Star-Formation Criteria in High-Resolution Simulations of Disk Galaxies?
We performed three-dimensional N -body/SPH simulations to study how mass resolution and other model param- eters, such as the star-formation efficiency parameter, Cand the threshold density for starExpand