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

Figures and Tables from this paper

Energy transfer from baryons to dark matter as a unified solution to small-scale structure issues of the ΛCDM model
Using a semianalytic code, we show how baryon physics in a $\Lambda$CDM cosmology could solve the discrepancy between numerical predictions of dark matter haloes and observations, ranging from dwarfExpand
Lectures on Dark Matter Physics
Rotation curve measurements provided the first strong indication that a significant fraction of matter in the Universe is non-baryonic. Since then, a tremendous amount of progress has been made onExpand
The Lyman-α forest as a diagnostic of the nature of the dark matter
The observed Lyman-α flux power spectrum (FPS) is suppressed on scales below ${\sim} ~ 30\, {\rm km\, s}^{-1}$. This cut-off could be due to the high temperature, T0, and pressure, p0, of theExpand
Discovery of Strongly Inverted Metallicity Gradients in Dwarf Galaxies at z ∼ 2
Author(s): Wang, X; Jones, TA; Treu, T; Hirtenstein, J; Brammer, GB; Daddi, E; Meng, XL; Morishita, T; Abramson, LE; Henry, AL; Peng, YJ; Schmidt, KB; Sharon, K; Trenti, M; Vulcani, B | Abstract: ©Expand
On the Origin of Star–Gas Counterrotation in Low-mass Galaxies
Stars in galaxies form from the cold rotationally supported gaseous disks that settle at the center of dark matter halos. In the simplest models, such angular momentum is acquired early on at theExpand
The Dark Matter Distributions in Low-mass Disk Galaxies. II. The Inner Density Profiles
Dark-matter-only simulations predict that dark matter halos have steep, cuspy inner density profiles, while observations of dwarf galaxies find a range of inner slopes that are often much shallower.Expand
Dark Matter Haloes and Subhaloes
The development of methods and algorithms to solve the N-body problem for classical, collisionless, non-relativistic particles has made it possible to follow the growth and evolution of cosmic darkExpand
No cores in dark matter-dominated dwarf galaxies with bursty star formation histories
Measurements of the rotation curves of dwarf galaxies are often interpreted as requiring a constant density core at the centre, at odds with the ‘cuspy’ inner profiles predicted by N-bodyExpand
Chemodynamics of barred galaxies in cosmological simulations: On the Milky Way’s quiescent merger history and in-situ bulge
We explore the chemodynamical properties of a sample of barred galaxies in the Auriga magneto-hydrodynamical cosmological zoom-in simulations, which form boxy/peanut (b/p) bulges, and compare theseExpand
Kinematics of Circumgalactic Gas: Feeding Galaxies and Feedback
We present observations of 50 pairs of redshift z ~ 0.2 star-forming galaxies and background quasars. These sightlines probe the circumgalactic medium (CGM) out to half the virial radius, and weExpand
...
1
2
3
4
5
...

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
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
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
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
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
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
...
1
2
3
4
...