Results 51 to 60 of about 801,925 (377)
The mass–concentration–redshift relation of cold and warm dark matter haloes [PDF]
, 2016 We use a suite of cosmological simulations to study the mass–concentration–redshift relation, c(M, z), of dark matter haloes. Our simulations include standard Λ-cold dark matter (CDM) models, and additional runs with truncated power spectra, consistent ...
A. Ludlow +7 more
semanticscholar +1 more source
Gravitational Lensing as a Probe of Cold Dark Matter Subhalos
Advances in Astronomy, 2010 In the cold dark matter scenario, dark matter halos are assembled hierarchically from smaller subunits. Some of these subunits are disrupted during the merging process, whereas others survive temporarily in the form of subhalos.
Erik Zackrisson, Teresa Riehm
doaj +1 more source
Crater 2: An Extremely Cold Dark Matter Halo [PDF]
, 2016 We present results from MMT/Hectochelle spectroscopy of 390 red giant candidate stars along the line of sight to the recently discovered Galactic satellite Crater 2. Modeling the joint distribution of stellar positions, velocities, and metallicities as a
N. Caldwell +8 more
semanticscholar +1 more source
Simulating the cold dark matter-neutrino dipole with TianNu [PDF]
, 2016 Measurements of neutrino mass in cosmological observations rely on two point statistics that are hindered by significant degeneracies with the optical depth and galaxy bias.
Derek Inman +8 more
semanticscholar +1 more source
Cold dark matter hypotheses in the MSSM [PDF]
Physics Letters B, 2011 version to appear in Physcis Letters ...
Fernando Quevedo +2 more
openaire +2 more sources
A new recipe for $$\Lambda $$ Λ CDM
European Physical Journal C: Particles and Fields, 2017 It is well known that a canonical scalar field is able to describe either dark matter or dark energy but not both. We demonstrate that a non-canonical scalar field can describe both dark matter and dark energy within a unified setting.
Varun Sahni, Anjan A. Sen
doaj +1 more source
Assessment of Dark Matter Models Using Dark Matter Correlations across Dwarf Spheroidal Galaxies
Universe, 2022 The predicted size of dark matter substructures in kilo-parsec scales is model-dependent. Therefore, if the correlations between dark matter mass densities as a function of the distances between them are measured via observations, we can scrutinize dark ...
Ahmad Borzou
doaj +1 more source
Cold keV dark matter from decays and scatterings [PDF]
, 2017 We explore ways of creating cold keV-scale dark matter by means of decays and scatterings. The main observation is that certain thermal freeze-in processes can lead to a cold dark matter distribution in regions with small available phase space.
J. Heeck, D. Teresi
semanticscholar +1 more source
CAUSTICS AND COLD DARK MATTER [PDF]
The Identification of Dark Matter, 2001 The hierarchical cold dark matter (CDM) model for structure formation is a well defined and testable model. Direct detection is the best technique for confirming the model yet predictions for the energy and density distribution of particles on earth remain inadequate.
openaire +3 more sources
Splashback Shells of Cold Dark Matter Halos [PDF]
, 2016 The density field in the outskirts of dark matter halos is discontinuous as a result of a caustic formed by matter at its first apocenter after infall. In this paper, we present an algorithm to identify the “splashback shell” formed by these apocenters ...
Philip Mansfield, A. Kravtsov, B. Diemer
semanticscholar +1 more source