The Dark Matter Crisis: Falsification of the Current Standard Model of Cosmology

@article{Kroupa2012TheDM,
  title={The Dark Matter Crisis: Falsification of the Current Standard Model of Cosmology},
  author={Pavel Kroupa},
  journal={Publications of the Astronomical Society of Australia},
  year={2012},
  volume={29},
  pages={395 - 433}
}
  • P. Kroupa
  • Published 2012
  • Physics
  • Publications of the Astronomical Society of Australia
Abstract The current standard model of cosmology (SMoC) requires The Dual Dwarf Galaxy Theorem to be true according to which two types of dwarf galaxies must exist: primordial dark-matter (DM) dominated (type A) dwarf galaxies, and tidal-dwarf and ram-pressure-dwarf (type B) galaxies void of DM. Type A dwarfs surround the host approximately spherically, while type B dwarfs are typically correlated in phasespace. Type B dwarfs must exist in any cosmological theory in which galaxies interact… Expand
Lessons from the Local Group (and beyond) on dark matter
The existence of exotic dark matter particles outside the standard model of particle physics constitutes a central hypothesis of the current standard model of cosmology (SMoC). Using a wide range ofExpand
Galaxies lacking dark matter in the Illustris simulation
Context. Any viable cosmological model in which galaxies interact predicts the existence of primordial and tidal dwarf galaxies (TDGs). In particular, in the standard model of cosmology (ΛCDM),Expand
Galaxies as simple dynamical systems: observational data disfavor dark matter and stochastic star formation
According to modern theory, galactic evolution is driven by the dynamics of dark matter and stochastic star formation, but galaxies are observed to be simple systems. The existence of dark matterExpand
Scalar field dark matter in clusters of galaxies
One alternative to the cold dark matter (CDM) paradigm is the scalar field dark matter (SFDM) model, which assumes dark matter is a spin-0 ultra-light scalar field (SF) with a typical massExpand
Galactic rotation curves, the baryon-to-dark-halo-mass relation and space–time scale invariance
Low-acceleration space-time scale invariant dynamics (SID, Milgrom 2009a) predicts two fundamental correlations known from observational galactic dynamics: the baryonic Tully-Fisher relation (BTFR)Expand
Dark Matters on the Scale of Galaxies
The cold dark matter model successfully explains both the emergence and evolution of cosmic structures on large scales and, when we include a cosmological constant, the properties of the homogeneousExpand
Understanding the internal dynamics of elliptical galaxies without non-baryonic dark matter
Assuming virial equilibrium and Newtonian dynamics, low-mass early-type galaxies have larger velocity dispersions than expected from the amount of baryons they contain. The conventionalExpand
Galactic Forces Rule the Dynamics of Milky Way Dwarf Galaxies
Dwarf galaxies populating the Galactic halo are assumed to host the largest fractions of dark matter, as calculated from their velocity dispersions. Their major axes are preferentially aligned withExpand
Does the galaxy NGC1052–DF2 falsify Milgromian dynamics?
TLDR
The ultra-diffuse galaxy NGC1052–DF2 has a dynamical mass, determined by the motions of globular-cluster-like objects, that is essentially the same as the mass in stars, meaning that it does not have a dark matter component, and demonstrates that dark matter is not always coupled with baryonic matter on galactic scales. Expand
The Structure and Dark Halo Core Properties of Dwarf Spheroidal Galaxies
The structure and dark matter halo core properties of dwarf spheroidal galaxies (dSphs) are investigated. A double-isothermal (DIS) model of an isothermal, non selfgravitating stellar system, inExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 255 REFERENCES
The dark matter halos of dwarf galaxies: a challenge for the LCDM paradigm?
The cold dark matter halo mass function is much steeper than the galaxy stellar mass function on galactic and subgalactic scales. This difference is usually reconciled by assuming that the galaxyExpand
Tidal Dwarf Galaxies and Missing Baryons
Tidal dwarf galaxies form during the interaction, collision, or merger of massive spiral galaxies. They can resemble “normal” dwarf galaxies in terms of mass, size, and become dwarf satellitesExpand
The Tumultuous Lives of Galactic Dwarfs and the Missing Satellites Problem
Hierarchical cold dark matter (CDM) models predict that Milky Way-sized halos contain several hundred dense low-mass dark matter satellites (the substructure), an order of magnitude more than theExpand
The Metamorphosis of Tidally Stirred Dwarf Galaxies
We present results from high-resolution N-body/SPH (smoothed particle hydrodynamic) simulations of rotationally supported dwarf irregular galaxies moving on bound orbits in the massive dark matterExpand
DWARFS GOBBLING DWARFS: A STELLAR TIDAL STREAM AROUND NGC 4449 AND HIERARCHICAL GALAXY FORMATION ON SMALL SCALES
A candidate diffuse stellar substructure was previously reported in the halo of the nearby dwarf starburst galaxy NGC 4449 by Karachentsev et al. We map and analyze this feature using a uniqueExpand
Where will supersymmetric dark matter first be seen
If the dark matter consists of supersymmetric particles, γ-ray observatories such as the Large Area Telescope aboard the Fermi satellite may detect annihilation radiation from the haloes of galaxiesExpand
Galactic stellar haloes in the CDM model
We present six simulations of galactic stellar haloes formed by the tidal disruption of accreted dwarf galaxies in a fully cosmological setting. Our model is based on the Aquarius project, a suite ofExpand
Mass modelling of dwarf spheroidal galaxies: the effect of unbound stars from tidal tails and the Milky Way
We study the origin and properties of the population of unbound stars in the kinematic samples of dwarf spheroidal (dSph) galaxies. For this purpose we have run a high-resolution N-body simulation ofExpand
Clumps and streams in the local dark matter distribution
TLDR
A simulation that resolves dark matter substructure even in the very inner regions of the Galactic halo is reported, finding hundreds of very concentrated dark matter clumps surviving near the solar circle, as well as numerous cold streams. Expand
The spatial distribution of the Milky Way and Andromeda satellite galaxies
There are two fundamentally different physical origins of faint satellite galaxies: cosmological sub-structures that contain shining baryons and the fragmentation of gas-rich tidal arms thrown outExpand
...
1
2
3
4
5
...