Results 131 to 140 of about 234,039 (316)
Revisiting perfect fluid dark matter: Observational constraints from our galaxy
Physics Letters B, 2016 We revisit certain features of an assumed spherically symmetric perfect fluid dark matter halo in the light of the observed data of our galaxy, the Milky Way (MW). The idea is to apply the Faber–Visser approach of combined observations of rotation curves
Alexander A. Potapov +2 more
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Gravitational Stability of Vortices in Bose-Einstein Condensate Dark Matter
The Open Journal of Astrophysics, 2022 We investigate a simple model for a galactic halo under the assumption that it is dominated by a dark matter component in the form of a Bose-Einstein condensate involving an ultra-light scalar particle.
Mark N Brook, Peter Coles
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Dark galactic halos without dark matter [PDF]
EPL (Europhysics Letters), 2015 5 pages, updated text, recent references added, accepted for Europhysics ...
openaire +3 more sources
Advanced 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
Distinctive positron feature from particle dark-matter annihilations in the galatic halo [PDF]
, 1991 Marc Kamionkowski, Michael S. Turner
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A Study on Thermal Expansion and Thermomechanical Behavior of Composite Metal Foams
Advanced Engineering Materials, EarlyView.The coefficient of thermal expansion of steel–steel composite metal foam (S‐S CMF) is shown to be lower than that of bulk stainless steel while its performance under compression demonstrate excellent mechanical stability and strength at all temperatures with gradualsoftening from 400 to 600 °C.
Zubin Chacko +2 more
wiley +1 more source
NATURE AND NURTURE IN DARK MATTER HALOS [PDF]
The Astrophysical Journal, 2008 Cosmological simulations consistently predict specific properties of dark matter halos, but these have not yet led to a physical understanding that is generally accepted. This is especially true for the central regions of these structures. Recently two major themes have emerged.
openaire +3 more sources
Advanced Functional Materials, EarlyView.In this study, a close correlation among the resting period, the cyclability of the zinc anode, and the evolution of byproduct zinc hydroxide sulfate (ZHS) is identified. Furthermore, it is shown that proper control of the interfacial ZHS can significantly enhance the cycle performance of the zinc anode by effectively inhibiting corrosion and promoting
Zhijun Cai +6 more
wiley +1 more source
Highlights on signals from Dark Matter particles
EPJ Web of Conferences, 2017 Many experimental observations and theoretical arguments have pointed out that a large fraction of the Universe is composed by Dark Matter particles. Many possibilities are open on the nature and interaction types of such relic particles.
Bernabei R. +15 more
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Phase-space structure of cold dark matter halos [PDF]
, 1992 P. Sikivie, James R. Ipser
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