Results 21 to 30 of about 2,655,258 (212)
The Astrophysical Journal, 2023 Constraining the distribution of small-scale structure in our universe allows us to probe alternatives to the cold dark matter paradigm. Strong gravitational lensing offers a unique window into small dark matter halos (
Sebastian Wagner-Carena +6 more
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Dark matter phenomenology of high-speed galaxy cluster collisions
European Physical Journal C: Particles and Fields, 2017 We perform a general computational analysis of possible post-collision mass distributions in high-speed galaxy cluster collisions in the presence of self-interacting dark matter.
Yuriy Mishchenko, Chueng-Ryong Ji
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Galaxy Disruption in a Halo of Dark Matter
Science, 2003 The relics of disrupted satellite galaxies have been found around the Milky Way and Andromeda, but direct evidence of a satellite galaxy in the early stages of disruption has remained elusive. We have discovered a dwarf satellite galaxy in the process of being torn apart by gravitational tidal forces as it merges with a larger galaxy's dark matter halo.
Forbes, Duncan +4 more
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Dark matter annihilation in the first galaxy haloes [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 11 pages, 10 figures.
Schoen, S +4 more
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DARK MATTER HALOS OF BARRED DISK GALAXIES [PDF]
The Astrophysical Journal, 2015 We use a large volume-limited sample of disk galaxies drawn from the Sloan Digital Sky Survey Data Release 7 to study the dependence of the bar fraction on the stellar-to-halo mass ratio, making use of a group catalog, we identify central and satellite galaxies in our sample.
Bernardo Cervantes Sodi +2 more
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Dark Matter Halos in Elliptical Galaxies
The Astrophysical Journal, 1993 Values of the M/L B ratio in the inner regions of elliptical (E) galaxies are determined using ionized gas disks as tracers of the triaxial potential. These data, when combined with those provided by the H I disks extending to the outer regions, show that the variation of M/L B with galactocentric radius in Es is similar to that of spirals.
BERTOLA F +3 more
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THE PROLATE DARK MATTER HALO OF THE ANDROMEDA GALAXY [PDF]
The Astrophysical Journal, 2014 Typos corrected. Replaced to match published version.
Hayashi, Kohei, Chiba, Masashi
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Relating the Structure of Dark Matter Halos to Their Assembly and Environment
The Astrophysical Journal, 2020 We use a large N -body simulation to study the relation of the structural properties of dark matter halos to their assembly history and environment. The complexity of individual halo assembly histories can be well described by a small number of principal
Yangyao Chen +6 more
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The Structure of Dark Matter Halos in Dwarf Galaxies [PDF]
The Astrophysical Journal, 1995 Some dwarf galaxies have HI rotation curves that are completely dominated by a surrounding dark matter (DM) halo (e.g. Carignan & Freeman 1988). These objects represent ideal candidates for an investigation of the density structure of low-mass DM halos as the uncertainties resulting from the subtraction of the visible component are small, even in ...
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Dark matter halo properties from galaxy–galaxy lensing★ [PDF]
Monthly Notices of the Royal Astronomical Society, 2013 We present results for a galaxy-galaxy lensing study based on imaging data from the Canada-France-Hawaii Telescope Legacy Survey Wide. From a 12 million object multi-colour catalogue for 124 deg^2 of photometric data in the u*g'r'i'z' filters we compute photometric redshifts (with a scatter of σ_{Δz/(1+z)} = 0.033 and an outlier rate of η=2.0 per cent ...
Brimioulle, F. +4 more
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