Results 21 to 30 of about 7,809,762 (287)
A first estimate of the Milky Way dark matter halo spin [PDF]
Astronomy & Astrophysics, 2021 The spin, or normalized angular momentumλ, of dark matter halos in cosmological simulations follows a log normal distribution and has little correlation with galaxy observables such as stellar masses or sizes. There is currently no way to infer theλparameter of individual halos hosting observed galaxies.
Aura Obreja +2 more
openaire +2 more sources
Building an Acceleration Ladder with Tidal Streams and Pulsar Timing
The Astrophysical Journal Letters, 2023 We analyse stellar streams in action-angle coordinates combined with recent local direct acceleration measurements to provide joint constraints on the potential of our galaxy.
Peter Craig +3 more
doaj +1 more source
Search for dark matter candidates and large extra dimensions in events with a jet and missing transverse momentum with the ATLAS detector [PDF]
, 2013 A search for new phenomena in events with a high-energy jet and large missing transverse momentum is performed using data from proton-proton collisions at √s=7 TeV with the ATLAS experiment at the Large Hadron Collider.
Jones, G. (Graham) +2 more
core +5 more sources
Warm dark matter constraints using Milky Way satellite observations and subhalo evolution modeling [PDF]
, 2022 Warm dark matter (WDM) can potentially explain small-scale observations that currently challenge the cold dark matter (CDM) model, as warm particles suppress structure formation due to free-streaming effects.
Dekker, A. +4 more
core +4 more sources
Galactic substructure and dark-matter annihilation in the Milky Way halo [PDF]
Physical Review D, 2010 10 pages, 7 figures, submitted to Phys. Rev.
Kamionkowski, Marc +2 more
openaire +3 more sources
The Astrophysical Journal, 2023 The Large Magellanic Cloud (LMC) will induce a dynamical friction (DF) wake on infall to the Milky Way (MW). The MW’s stellar halo will respond to the gravity of the LMC and the dark matter (DM) wake, forming a stellar counterpart to the DM wake.
Hayden R. Foote +9 more
doaj +1 more source
Overview of the DESI Milky Way Survey
The Astrophysical Journal, 2023 We describe the Milky Way Survey (MWS) that will be undertaken with the Dark Energy Spectroscopic Instrument (DESI) on the Mayall 4 m telescope at the Kitt Peak National Observatory.
Andrew P. Cooper +64 more
doaj +1 more source
The Milky Way’s halo and subhaloes in self-interacting dark matter [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 ABSTRACT We perform high-resolution simulations of an MW-like galaxy in a self-interacting cold dark matter model with elastic cross-section over mass of $1~\rm cm^2\, g^{-1}$ (SIDM) and compare to a model without self-interactions (CDM).
Victor H Robles +3 more
openaire +4 more sources
AN OFF-CENTER DENSITY PEAK IN THE MILKY WAY'S DARK MATTER HALO? [PDF]
The Astrophysical Journal, 2013 12 pages, 11 figures, replaced with version accepted for publication in ...
Kuhlen, M +4 more
openaire +3 more sources
DISPERSAL OF TIDAL DEBRIS IN A MILKY-WAY-SIZED DARK MATTER HALO [PDF]
The Astrophysical Journal, 2016 ABSTRACT We simulate the tidal disruption of a collisionless N-body globular star cluster in a total of 300 different orbits selected to have galactocentric radii between 10 and 30 kpc in four dark matter halos: (a) a spherical halo with no subhalos, (b) a spherical halo with subhalos, (c) a realistic halo with no subhalos, and (d) a ...
Ngan W. +5 more
openaire +2 more sources