Results 71 to 80 of about 213,451 (373)
Statistics of substructures in dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2012 13 pages, 11 figures and 1 table.
G. De Lucia +4 more
openaire +4 more sources
Halo cold dark matter and microlensing [PDF]
Physical Review Letters, 1994 There is good evidence that most of the baryons in the Universe are dark and some evidence that most of the matter in the Universe is nonbaryonic with cold dark matter (cdm) being a promising possibility. We discuss expectations for the abundance of baryons and cdm in the halo of our galaxy and locally.
Michael S. Turner, Evalyn Gates
openaire +4 more sources
Halo model description of the non-linear dark matter power spectrum at $k \gg 1$ Mpc$^{-1}$
, 2010 Accurate knowledge of the non-linear dark-matter power spectrum is important for understanding the large-scale structure of the Universe, the statistics of dark-matter haloes and their evolution, and cosmological gravitational lensing.
Adelman-McCarthy +86 more
core +1 more source
TIDAL STREAM MORPHOLOGY AS AN INDICATOR OF DARK MATTER HALO GEOMETRY: THE CASE OF PALOMAR 5 [PDF]
, 2014 This paper presents an example where the morphology of a single stellar stream can be used to rule out a specific galactic potential form without the need for velocity information.
Sarah Pearson +3 more
semanticscholar +1 more source
The substructure hierarchy in dark matter haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 We present a new algorithm for identifying the substructure within simulated dark matter haloes. The method is an extension of that proposed by Tormen et al. (2004) and Giocoli et al. (2008a), which identifies a subhalo as a group of self-bound particles that prior to being accreted by the main progenitor of the host halo belonged to one and the same ...
GIOCOLI, CARLO +3 more
openaire +4 more sources
Condensation of Galactic Cold Dark Matter
, 2016 We consider the steady-state regime describing the density profile of a dark matter halo, if dark matter is treated as a Bose-Einstein condensate. We first solve the fluid equation for "canonical" cold dark matter, obtaining a class of density profiles ...
Visinelli, Luca
core +1 more source
Analytic model for galaxy and dark matter clustering [PDF]
, 2000 We investigate an analytic model to compute nonlinear power spectrum of dark matter, galaxies and their cross-correlation. The model is based on Press-Schechter halos, which cluster and have realistic dark matter profiles.
Spergel, U. Seljak
core +2 more sources
A search for dark matter in the Galactic halo with HAWC [PDF]
, 2017 The High Altitude Water Cherenkov (HAWC) gamma-ray observatory is a wide field-of-view observatory sensitive to 500 GeV – 100 TeV gamma rays and cosmic rays. With its observations over 2/3 of the sky every day, the HAWC observatory is sensitive to a wide
A. Abeysekara +103 more
semanticscholar +1 more source
The shapes and alignments of dark matter halos [PDF]
Journal of Cosmology and Astroparticle Physics, 2012 We present measurements of the triaxial dark matter halo shapes and alignment correlation functions in the Millennium and Millennium-2 dark matter N-body simulations. These two simulations allow us to measure the distributions of halo shapes down to 10% of the virial radius over a halo mass range of 6E9 - 2E14 M_sun/h.
Shaun Cole +3 more
openaire +4 more sources
An approximate theory for substructure propagation in clusters
, 2007 The existence of dark matter can be proved in an astrophysical context by the discovery of a system in which the observed baryons and the inferred dark matter are spatially segregated, such as the bullet cluster (1E0657-558). The full descriptions of the
Berrington +35 more
core +3 more sources