Results 151 to 160 of about 213,451 (373)

Empirical Determination of Dark Matter Velocities using Metal-Poor Stars [PDF]

open access: yes, 2017
The Milky Way dark matter halo is formed from the accretion of smaller subhalos. These sub-units also harbor stars---typically old and metal-poor---that are deposited in the Galactic inner regions by disruption events.
Herzog-Arbeitman, Jonah   +3 more
core   +1 more source

Low‐Activation Compositionally Complex Alloys for Advanced Nuclear Applications—A Review

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐activation compositionally complex alloys (LACCAs) are advanced metallic materials primarily composed of low‐activation elements, offering advantages such as rapid compliance with operational standards and safe recyclability. This review highlights their potential for extreme high‐temperature irradiation environments as structural materials for ...
Yangfan Wang   +8 more
wiley   +1 more source

Small scale structures in coupled scalar field dark matter

open access: yesPhysics Letters B, 2014
We investigate structure formation for ultra-light scalar field dark matter coupled to quintessence, in particular the cosmon–bolon system. The linear power spectrum is computed by a numerical solution of the coupled field equations.
J. Beyer, C. Wetterich
doaj  

On the core-halo distribution of dark matter in galaxies [PDF]

open access: yes, 2014
We investigate the distribution of dark matter in galaxies by solving the equations of equilibrium of a self-gravitating system of massive fermions (`inos') at selected temperatures and degeneracy parameters within general relativity.
R. Ruffini, C. Argüelles, J. Rueda
semanticscholar   +1 more source

Wakes in Dark Matter Halos

open access: yes, 2006
12 pages, 7 figures, to appear in the Proceedings of the Fifth International Conference on Dark Matter in Astro and Particle Physics, H.V. Klapdor-Kleingrothaus, R. Arnowitt (eds.)
openaire   +3 more sources

Collisional baryonic dark matter haloes [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1999
Revised version; 6 pages, 2 figures, to appear in ...
openaire   +4 more sources

Influence of a Hydrogen Addition to the Inert Gas and Subsequent Heat Treatments on the Microstructure and Mechanical Properties of Magnesium WE43 Fabricated by PBF‐LB/M

open access: yesAdvanced Engineering Materials, EarlyView.
This article investigates optimal processing conditions for the laser‐based powder bed fusion of WE43. To limit the interaction with remaining oxygen, a 3 vol% hydrogen admixture to the inert gas is investigated. Furthermore, heat treatments are investigated in the range of 250–350 °C for 48 h.
Arvid Abel   +9 more
wiley   +1 more source

Black hole surrounded by the pseudo-isothermal dark matter halo

open access: yesEuropean Physical Journal C: Particles and Fields
In this paper, we obtain a new spherically symmetric black hole surrounded by the pseudo-isothermal dark matter halo. Furthermore, to explore the effects of the pseudo-isothermal halo profile on a rotating black hole at the M87 galactic center, we derive
Yi Yang   +4 more
doaj   +1 more source

A new halo-independent approach to dark matter direct detection analysis [PDF]

open access: yes, 2014
Uncertainty in the local dark matter velocity distribution is a key difficulty in the analysis of data from direct detection experiments. Here we propose a new approach for dealing with this uncertainty, which does not involve any assumptions about the ...
B. Feldstein, F. Kahlhoefer
semanticscholar   +1 more source

Physical properties underlying observed kinematics of satellite galaxies

open access: yes, 2013
We study the kinematics of satellites around isolated galaxies selected from the Sloan Digital Sky Survey (SDSS) spectroscopic catalog. Using a model of the phase-space density previously measured for the halos of LCDM dark matter cosmological ...
Abazajian   +81 more
core   +2 more sources

Home - About - Disclaimer - Privacy