Results 31 to 40 of about 111,737 (267)

Measurement of anisotropy of dark matter velocity distribution using directional detection

open access: yesEPJ Web of Conferences, 2018
Although the velocity distribution of dark matter is assumed to be generally isotropic, some studies have found that ~25% of the distribution can have anisotropic components.
Nagao Keiko I.
doaj   +1 more source

Estimating Dark Matter Distributions

open access: yesThe Astrophysical Journal, 2005
Thanks to instrumental advances, new, very large kinematic datasets for nearby dwarf spheroidal (dSph) galaxies are on the horizon. A key aim of these datasets is to help determine the distribution of dark matter in these galaxies. Past analyses have generally relied on specific dynamical models or highly restrictive dynamical assumptions.
Wang, Xiao   +4 more
openaire   +2 more sources

The Distribution of Satellite Galaxies in the IllustrisTNG100 Simulation

open access: yesThe Astrophysical Journal, 2022
We investigate the spatial distribution of the satellites of isolated host galaxies in the IllustrisTNG100 simulation. In agreement with a previous, similar analysis of the Illustris-1 simulation, the satellites are typically poor tracers of the mean ...
Bryanne McDonough, Tereasa G. Brainerd
doaj   +1 more source

An excursion set model for the distribution of dark matter and dark matter haloes [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1998
A model of the gravitationally evolved dark matter distribution, in the Eulerian space, is developed. It is a simple extension of the excursion set model that is commonly used to estimate the mass function of collapsed dark matter haloes. In addition to describing the evolution of the dark matter itself, the model allows one to describe the evolution ...
openaire   +2 more sources

Velocity and mass bias in the distribution of dark matter haloes [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2014
The non-linear, scale-dependent bias in the mass distribution of galaxies and the underlying dark matter is a key systematic affecting the extraction of cosmological parameters from galaxy clustering. Using 95 million halos from the Millennium-XXL N-body simulation, we find that the mass bias is scale independent only for $k<0.1 h{\rm Mpc}^{-1 ...
Jennings, E., Baugh, C.M., Hatt, D.
openaire   +4 more sources

The First Robust Evidence Showing a Dark Matter Density Spike Around the Supermassive Black Hole in OJ 287

open access: yesThe Astrophysical Journal Letters
Black hole dynamics suggests that dark matter would redistribute near a supermassive black hole (SMBH) to form a density spike. However, no direct evidence of a dark matter density spike around an SMBH has been identified.
Man Ho Chan, Chak Man Lee
doaj   +1 more source

Distribution of Dark Matter in Galaxies, In Search of the Dark Matter Particle

open access: yesIOSR Journal of Applied Physics, 2014
A new theory called, the Dark Matter Flow Theory based on fluid mechanics concepts, has been given for the first time to derive the density of the dark matter and its distribution inside galaxies and beyond. Although the results are chocking, however they exhibit a high congruence with the measured observations of the velocity rotation curves of ...
openaire   +1 more source

ABL kinase‐dependent phosphorylation of SH proteins promotes their direct interaction with CRK family SH2 domains

open access: yesFEBS Letters, EarlyView.
CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens   +8 more
wiley   +1 more source

Indirect Detection of Decaying Dark Matter with High Angular Resolution: The Case for Axion Search by IRCS on the Subaru Telescope

open access: yesThe Astrophysical Journal
Recent advances in photon detectors have provided exceptional sensitivities to dark matter with high angular resolution. Motivated by this, we present a detailed study of photon flux from dark matter decay in dwarf spheroidal galaxies (dSphs) by focusing
Wen Yin, Kohei Hayashi
doaj   +1 more source

A NEW PROBE OF THE DISTRIBUTION OF DARK MATTER IN GALAXIES [PDF]

open access: yesThe Astrophysical Journal, 2013
6 pages, 5 figures, submitted to ...
openaire   +2 more sources

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