Results 71 to 80 of about 917,117 (194)

Dark Matter Signals in the gamma-ray sky

EPJ Web of Conferences, 2014
Detection of gamma rays and cosmic rays from the annihilation or decay of dark matter particles is a promising method for identifying dark matter, understanding its intrinsic properties, and mapping its distribution in the universe.
Morselli Aldo
doaj   +1 more source

Figure Rotation of IllustrisTNG Halos

The Astrophysical Journal, 2023
We use the TNG50 and TNG50 dark matter (DM)-only simulations from the IllustrisTNG simulation suite to conduct an updated survey of halo figure rotation in the presence of baryons.
Neil Ash, Monica Valluri
doaj   +1 more source

How Cold is Cold Dark Matter?

, 2014
If cold dark matter consists of particles, these must be non-interacting and non-relativistic by definition. In most cold dark matter models however, dark matter particles inherit a non-vanishing velocity dispersion from interactions in the early ...
Armendariz-Picon, Cristian, Neelakanta, Jayanth T.   +1 more
core   +1 more source

MrMARTIAN: A Multiresolution Mass Reconstruction Algorithm Combining Free-form and Analytic Components

The Astrophysical Journal
We present Multi-resolution MAximum-entropy Reconstruction Technique Integrating Analytic Node ( MrMARTIAN ), a new hybrid strong lensing (SL) modeling algorithm.
Sangjun Cha, M. James Jee
doaj   +1 more source

Probing multicomponent extension of inert doublet model with a vector dark matter

European Physical Journal C: Particles and Fields, 2019
Although theoretically well-motivated as a minimal consistent dark matter (DM) model, the inert doublet model (IDM) fell short in explaining the existence of DM in the intermediate mass region (100–500 GeV).
Sreemanti Chakraborti, Amit Dutta Banik, Rashidul Islam   +2 more
doaj   +1 more source

Particle dark matter searches in the anisotropic sky

Frontiers in Physics, 2014
Anisotropies in the electromagnetic emission produced by dark matter annihilation or decay in the extragalactic sky are a recent tool in the quest for a particle dark matter evidence.
Nicolao eFornengo, Nicolao eFornengo, Marco eRegis, Marco eRegis   +3 more
doaj   +1 more source

Absorption of dark matter by a supermassive black hole at the Galactic center: role of boundary conditions

, 2004
The evolution of the dark matter distribution at the Galactic center is analyzed, which is caused by the combination of gravitational scattering on Galactic bulge stars and absorption by a supermassive black hole at the center of the bulge.
A. Lightman, A. S. Ilyin, A. V. Gurevich, E. A. Vasiliev, M. I. Zelnikov, M. I. Zel’nikov, P. Gondolo, R. Genzel   +7 more
core   +2 more sources

Anisotropy of dark matter velocity distribution

, 2018
Direct detection of dark matter with directional sensitivity has the potential to discriminate the dark matter velocity distribution. Especially, it will be suitable to discriminate isotropic distribution from anisotropic one. Analyzing data produced with Monte-Carlo simulation, required conditions for the discrimination is estimated.
openaire   +2 more sources

Dissecting the spin distribution of Dark Matter halos

, 2010
13
V. Antonuccio Delogu, A. Dobrotka, U. Becciani, S. Cielo, GIOCOLI, CARLO, A. V. Macci?, A. Romeo Velon?   +6 more
openaire   +5 more sources

Searching for Dark Structures: A Comparison of Weak-lensing Convergence Maps and Lensing-weighted Galaxy Density Maps

The Astrophysical Journal Supplement Series
We present the result of a comparison between the dark matter distribution inferred from weak gravitational lensing and the observed galaxy distribution to identify dark structures with a high dark-matter-to-galaxy density ratio.
Soojin Kim, Ho Seong Hwang, Niall Jeffrey   +2 more
doaj   +1 more source