Results 11 to 20 of about 54,131 (295)
Cosmology using cluster internal velocity dispersions [PDF]
New Astronomy, 1997 28 pages, LaTeX uses Elsevier style file, 7 postscript figures (3 bitmapped to lower res.) included.
BORGANI, STEFANO +3 more
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Calculation of velocity dispersion of the nearby galaxies using different stellar template libraries [PDF]
Serbian Astronomical Journal, 2010 We present the central velocity dispersion measurements of the nearby galaxies from the Sloan Digital Sky Survey (SDSS). Using the sample from the paper by Ho et al. 2009, we have selected 23 galaxies for which we calculate the velocity dispersion.
Lalović Ana
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Macro-flow and Velocity Dispersion [PDF]
8th International Congress of the Brazilian Geophysical Society, 2003 Deformation resulting from a compressional wave can cause pore fluid motion on the order of the wavelength. If the fluid mobility is high, pressure can be equilibrated between regions of gas versus brine saturation. This can result in a relaxed, drained velocity even lower than dry or gas saturated velocities. This diffusion of fluid pressure can cause
M. Batzle, R. Hofmann
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Imprints of zero-age velocity dispersions and dynamical heating on the age–velocity dispersion relation [PDF]
Publications of the Astronomical Society of Japan, 2017 Abstract Observations of stars in the the solar vicinity show a clear tendency of old stars to have larger velocity dispersions. This relation is called the age–velocity dispersion relation (AVR) and it is believed to provide insight into the heating history of the Milky Way galaxy. Here, in order to investigate the origin of the AVR, we
Kumamoto, Jun +2 more
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Velocity dispersions in galaxy clusters
The Astrophysical Journal, 1993 We analyze the velocity dispersions of 79 galaxy clusters having at least 30 galaxies with available redshifts. We show that different estimates of velocity dispersion give similar results on cluster samples of at least 20 galaxies each. However, only robust estimates of velocity dispersion seem to be efficient on cluster samples with 10 galaxies each.
GIRARDI, MARISA +4 more
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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 ...
Cowsik, R +2 more
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地球与行星物理论评, 2023 Surface wave tomography using dispersion data to obtain isotropic and anisotropic shear wave velocity structures is a very efficient approach to study regional and global tectonics and deformation and to probe high-resolution crustal, upper mantle and ...
Huajian Yao +4 more
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Estimation of the Soil Layers Thickness Using Multi-Chanel Analysis of Surface Waves and Surface Wave Dispersion Curve [PDF]
Journal of Structural and Construction Engineering, 2021 One of the most interesting topics in the geotechnical and geophysical engineering is the use of surface waves to characterize the earth subsurface layers.
Mehdi Hashemi Jokar +2 more
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Velocity dispersion in layered media [PDF]
SEG Technical Program Expanded Abstracts 2005, 2005 Summary Velocity dispersion in stratified media depends upon the impedance contrast between contiguous layers and the ratio (R) of the wavelength to the layer thickness. The goal of the present work is to understand the scale dependence of propagation velocities in periodically layered media. We based our analysis in 1-D wave equation forward modeling.
Carlos Cobos, De‐hua Han
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Electron velocity distribution function in a plasma with temperature gradient and in the presence of suprathermal electrons: application to incoherent-scatter plasma lines [PDF]
Annales Geophysicae, 1998 The plasma dispersion function and the reduced velocity distribution function are calculated numerically for any arbitrary velocity distribution function with cylindrical symmetry along the magnetic field.
P. Guio +3 more
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