Results 81 to 90 of about 917,117 (194)
Galactic Dark Matter: a Dynamical Consequence of Cosmological Expansion [PDF]
, 2014 This work wants to show how standard General Relativity (GR) is able to explain galactic rotation curves without the need for dark matter, this starting from the idea that when Einstein's equations are applied to the dynamics of a galaxy embedded in an ...
Mégier, Elias A. S.
core
Direct Detection of Dark Matter Debris Flows
, 2012 Tidal stripping of dark matter from subhalos falling into the Milky Way produces narrow, cold tidal streams as well as more spatially extended "debris flows" in the form of shells, sheets, and plumes. Here we focus on the debris flow in the Via Lactea II
David N. Spergel +4 more
core +1 more source
The Local Dark Matter Distribution from Hydrodynamic Simulations
, 2017 Bozorgnia, Nassim "The Local Dark Matter Distribution from Hydrodynamic Simulations" in 12th "Patras" Workshop on Axions, WIMPs and WISPs, PATRAS 2016 / Kim, Younglm, Lindner, Axel, Semertzidis, Yannis K. (eds.), Verlag Deutsches Elektronen-Synchrotron : 2017 ; PATRAS 2016 : 12th "Patras" Workshop on Axions, WIMPs and WISPs, 2016-06-20 - 2016-06-24 ...
Bozorgnia, N. +9 more
openaire +4 more sources
Time delay of light in the gravitational lensing of supermassive black holes in dark matter halos
European Physical Journal C: Particles and FieldsThe dark matter halo has non-negligible effects on the gravitational lensing of supermassive black hole in the galaxy center. Our work presents a study on the time-delay of light in gravitational lensing of black holes enclosed by dark matter halos.
Chen-Kai Qiao, Ping Su
doaj +1 more source
Dark Matters on the Scale of Galaxies
Universe, 2020 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 homogeneous and isotropic Universe.
Ivan de Martino +5 more
doaj +1 more source
Emergent dark matter in late time universe on holographic screen
Journal of High Energy Physics, 2018 We discuss a scenario that the dark matter in late time universe emerges as part of the holographic stress-energy tensor on the hypersurface in higher dimensional flat spacetime.
Rong-Gen Cai, Sichun Sun, Yun-Long Zhang
doaj +1 more source
Asymmetric capture of Dirac dark matter by the Sun
, 2015 Current problems with the solar model may be alleviated if a significant amount of dark matter from the galactic halo is captured in the Sun. We discuss the capture process in the case where the dark matter is a Dirac fermion and the background halo ...
Blennow, Mattias, Clementz, Stefan
core +1 more source
Disentangling the potential dark matter origin of LIGO's black holes
, 2017 The nature of dark matter remains one of the biggest open questions in physics. Intriguingly, it has been suggested that dark matter may be explained by another recently observed phenomenon: the detection of gravitational waves by LIGO.
Hanna, Chad, Magee, Ryan
core +1 more source
Dark matter distribution in dwarf spheroidal galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 We study the distribution of dark matter in dwarf spheroidal galaxies by modelling the moments of their line-of-sight velocity distributions. We discuss different dark matter density profiles, both cuspy and possessing flat density cores. The predictions are made in the framework of standard dynamical theory of two-component (stars and dark matter ...
openaire +2 more sources
Properties of Galactic Dark Matter: Constraints from Astronomical Observations
, 2013 The distributions of normal matter and of dark matter in the Galaxy are coupled to each other as they both move in the common gravitational potential. In order to fully exploit this interplay and to derive the various properties of dark matter relevant ...
Burch, Benjamin, Cowsik, Ramanath
core +1 more source