Results 31 to 40 of about 454,773 (69)

On the fraction of dark matter in charged massive particles (CHAMPs) [PDF]

open access: yes, 2010
From various cosmological, astrophysical and terrestrial requirements, we derive conservative upper bounds on the present-day fraction of the mass of the Galactic dark matter (DM) halo in charged massive particles (CHAMPs). If dark matter particles are neutral but decay lately into CHAMPs, the lack of detection of heavy hydrogen in sea water and the ...
arxiv   +1 more source

The structure of halos in Self-Interacting Cold Dark Matter models [PDF]

open access: yesRev.Mex.Astron.Astrofis. 17 (2003) 19, 2003
High-resolution numerical simulations were performed to study the structure and substructure of Milky Way- and cluster-sized halos in a LCDM cosmology with self-interacting (SI) dark particles, where the particle cross section, +AFw-sig, is assumed constant or inversely proportional to the relative velocity.
arxiv  

Galactic constraints on CHAMPs [PDF]

open access: yesarXiv, 2008
We improve earlier Galactic bounds that can be placed on the fraction of dark matter in charged elemental particles (CHAMPs). These constraints are of interest for CHAMPs whose mass is too large for them to have seen through their electromagnetic interaction with ordinary matter, and whose gyroradius in the galactic magnetic field is too small for halo
arxiv  

Preservation of Cuspy Profiles in Disk Galaxy Mergers [PDF]

open access: yesarXiv, 2005
We carried out three self-consistent $N$-body simulations of galaxy mergers, with a cuspy dark matter profile, in order to study if the inner dark density slope is preserved in the remnants. In these simulations the progenitors include both a stellar disk and an intrinsic angular momentum for the halos, unlike previous similar studies.
arxiv  

SIDM on FIRE: hydrodynamical self-interacting dark matter simulations of low-mass dwarf galaxies. [PDF]

open access: yesMon Not R Astron Soc, 2017
Robles VH   +9 more
europepmc   +1 more source

Cold dark matter: Controversies on small scales. [PDF]

open access: yesProc Natl Acad Sci U S A, 2015
Weinberg DH   +4 more
europepmc   +1 more source

Galaxy formation with BECDM - I. Turbulence and relaxation of idealized haloes. [PDF]

open access: yesMon Not R Astron Soc, 2017
Mocz P   +6 more
europepmc   +1 more source

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