Double-Disk Dark Matter

@article{Fan2013DoubleDiskDM,
  title={Double-Disk Dark Matter},
  author={JiJi Fan and Andrey Katz and Lisa Randall and Matthew Reece},
  journal={Physics of the Dark Universe},
  year={2013},
  volume={2},
  pages={139-156}
}
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References

SHOWING 1-10 OF 142 REFERENCES
Dark matter and dark radiation
We explore the feasibility and astrophysical consequences of a new long-range U(1) gauge field ("dark electromagnetism") that couples only to dark matter, not to the Standard Model. The dark matter
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 size
Structure formation in multiple dark matter cosmologies with long-range scalar interactions
(Abridged) An interaction between Cold Dark Matter (CDM) and a classical scalar field playing the role of the cosmic dark energy (DE) might provide long-range dark interactions without conflicting
Cosmological simulations with self-interacting dark matter – II. Halo shapes versus observations
If dark matter has a large self-interaction scattering cross section, then interactions among dark-matter particles will drive galaxy and cluster halos to become spherical in their centers. Work in
Dynamical Dark Matter: I. Theoretical Overview
In this paper, we propose a new framework for dark-matter physics. Rather than focus on one or more stable dark-matter particles, we instead consider a multi-component framework in which the dark
Subhaloes in self-interacting galactic dark matter haloes
We present N-body simulations of a new class of self-interacting dark matter models, which do not violate any astrophysical constraints due to a non-power-law velocity dependence of the transfer
Multiple dark matter as a self‐regulating mechanism for dark sector interactions
A wide range of astrophysical and cosmological observations support the evidence that the energy density of the Universe is presently largely dominated by particles and fields that do not belong to
Evidence against dissipation-less dark matter from observations of galaxy haloes
THERE are two different types of missing (dark) matter: the unseen matter needed to explain the high rotation velocities of atomic hydrogen in the outer parts of spiral galaxies1,2, and the much
A Test of the Collisional Dark Matter Hypothesis from Cluster Lensing
Spergel & Steinhardt proposed the possibility that dark matter particles are self-interacting as a solution to two discrepancies between the predictions of cold dark matter models and observations:
Self-interacting dark matter
A new type of dark matter is considered. As with cold dark matter, when the dark matter is nonrelativistic, it does not couple to the electron-photon plasma, so its entropy per comoving volume is
...
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