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Dispersion Velocity of Galactic Dark Matter Particles [PDF]
Physical Review Letters, 1996 The self-consistent spatial distribution of particles of Galactic dark matter is derived including their own gravitational potential, as also that of the visible matter of the Galaxy. In order to reproduce the observed rotation curve of the Galaxy the value of the dispersion velocity of the dark matter particles, $\rmsveldm$, should be $\sim 600\kmps ...
R. Cowsik +2 more
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Velocity Dispersions of Quiescent Galaxies in IllustrisTNG
The Astrophysical JournalAbstract We examine the central stellar velocity dispersion of subhalos based on IllustrisTNG cosmological hydrodynamic simulations. The central velocity dispersion is a fundamental observable that links galaxies with their dark matter subhalos.
Jubee Sohn +3 more
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Velocity dispersion in water-saturated granular sediment [PDF]
The Journal of the Acoustical Society of America, 2002 Recent experiments in the Gulf of Mexico have yielded a wealth of information on the environmental conditions and geoacoustic response of a uniform sand stratum immediately beneath the seafloor. A comparison of p-wave velocities measured at low (125 Hz) and high (11–50 kHz) frequencies in this layer indicates that there is a significant amount of ...
Robert D. Stoll
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Wave Properties of Gas-Hydrate Bearing Sediments Based on Poroelasticity
Frontiers in Earth Science, 2021 Natural gas hydrates have the properties of ice with a microporous structure and its concentration in sediments highly affects the wave velocity and attenuation. Previous studies have performed investigations based on the measurements of laboratory data,
Wei Wang +5 more
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Universe, 2022 The remarkable development of cosmology benefits from the increasingly improved measurements of cosmic distances, including absolute distances and relative distances.
Jing-Zhao Qi +4 more
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Sensors, 2021 Horizontal-to-Vertical Spectral Ratios (HVSR) and Rayleigh group velocity dispersion curves (DC) can be used to estimate the shallow S-wave velocity (VS) structure. Knowing the VS structure is important for geophysical data interpretation either in order
Maik Neukirch +5 more
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Dynamic fluid transport property of hydraulic fractures and its evaluation using acoustic logging
Petroleum Exploration and Development, 2022 The existing acoustic logging methods for evaluating the hydraulic fracturing effectiveness usually use the fracture density to evaluate the fracture volume, and the results often cannot accurately reflect the actual productivity.
Huanran LI +3 more
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Effects of Velocity and Permeability on Tracer Dispersion in Porous Media
Applied Sciences, 2021 During micro-scale tracer flow in porous media, the permeability and fluid velocity significantly affect the fluid dispersion properties of the media. However, the relationships between the dispersion coefficient, permeability, and fluid velocity in core
Yulong Yang +9 more
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The Case for the Fundamental MBH-σ Relation
Frontiers in Physics, 2020 Strong scaling relations between host galaxy properties (such as stellar mass, bulge mass, luminosity, effective radius etc) and their nuclear supermassive black hole's mass point toward a close co-evolution.
Christopher Marsden +3 more
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A THEOREM ON CENTRAL VELOCITY DISPERSIONS [PDF]
The Astrophysical Journal, 2009 submitted to ...
An, Jin Hyeok, Evans, N. W.
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