Results 1  10
of
17,179
RECONSTRUCTION OF VELOCITY FIELD*
"... Abstract In this paper we suppose that the distribution density of particles in phase space is known. Using Liouville's equations the problem of finding velocity field is considered as a minimization problem. Thus the problem of determination of velocity field is reduced to solving of elliptic ..."
Abstract
 Add to MetaCart
Abstract In this paper we suppose that the distribution density of particles in phase space is known. Using Liouville's equations the problem of finding velocity field is considered as a minimization problem. Thus the problem of determination of velocity field is reduced to solving
Velocity field for the trishear model
, 2000
"... A general method for the derivation of velocity fields consistent with the basic kinematics of the trishear model of faultpropagation folding is given. We show that the fields can be written as explicit functions of position within the deformation zone. To demonstrate the approach, several differen ..."
Abstract

Cited by 8 (0 self)
 Add to MetaCart
A general method for the derivation of velocity fields consistent with the basic kinematics of the trishear model of faultpropagation folding is given. We show that the fields can be written as explicit functions of position within the deformation zone. To demonstrate the approach, several
The Properties of Cosmic Velocity Fields
"... submitted to MNRAS Understanding the velocity field is very important for modern cosmology: it gives insights to structure formation in general, and also its properties are crucial ingredients in modelling redshiftspace distortions and in interpreting measurements of the kinetic SunyaevZeldovich e ..."
Abstract
 Add to MetaCart
submitted to MNRAS Understanding the velocity field is very important for modern cosmology: it gives insights to structure formation in general, and also its properties are crucial ingredients in modelling redshiftspace distortions and in interpreting measurements of the kinetic Sunyaev
Velocity Fields of Disk Galaxies
, 2002
"... Abstract. Two dimensional velocity fields have been an important tool for nearly 30 years and are instrumental in understanding galactic mass distributions and deviations from an ideal galactic disk. Recently a number of new instruments have started to produce more detailed velocity fields of the di ..."
Abstract
 Add to MetaCart
Abstract. Two dimensional velocity fields have been an important tool for nearly 30 years and are instrumental in understanding galactic mass distributions and deviations from an ideal galactic disk. Recently a number of new instruments have started to produce more detailed velocity fields
The LargeScale Velocity Field
, 1996
"... are proportional to their observed recession velocities, at least at low redshifts: cz = H0r. (1) However, this is not exactly correct. Galaxies have peculiar velocities above and beyond the Hubble flow indicated by Eq. (1). We denote the peculiar velocity v(r) at every point in space; the observed ..."
Abstract
 Add to MetaCart
, and the uncertainties in the value of H0 discussed by Freedman and Tammann in this volume are not an issue. Thus measurements of redshifts cz, and of redshiftindependent distances via standard candles, yield estimates of the radial component of the velocity field. What does the resulting velocity field tell us
The Local Velocity Field
, 803
"... Abstract. We only see a small fraction of the matter in the universe, but the rest gives itself away by the impact of its gravity. The distortions from pure Hubble flow (or peculiar velocities) that this matter creates have the potential to be a powerful cosmological tool, but are also a nuisance fo ..."
Abstract
 Add to MetaCart
for extragalactic astronomers who wish to use redshifts to estimate distances to local galaxies. We provide a quick overview of work on the local peculiar velocity field, discussing both simple spherical infall models, nonparametric modeling using redshifts surveys, and full velocity and density field
On Density and Velocity Fields and
"... We present a version of the Fourier Bessel method first introduced by Fisher, Lahav et al (1994) and Zaroubi et al (1995) with two extensions: (a) we amend the formalism to allow a generic galaxy weight which can be constant rather than the more conventional overweighting of galaxies at high distanc ..."
Abstract
 Add to MetaCart
velocities tend to be overpredicted in highdensity regions. Applying the formalism to the PSZz redshift catalog, we find that fi = 0:7 \Sigma 0:5 from a comparison of the reconstructed Local Group velocity to the CMB dipole. From an anisotropy test of the velocity field, we find that fi = 1 CDM models
The Effect of Anisotropic Friction on Vibratory Velocity Fields
"... The effect of anisotropic friction on vibratory velocity fields ..."
On Animating 2D Velocity Fields
"... www.ese.ucsc.edu/researeh/avis/toxflow.html Abstract. A velocity field, even one that represents a steady state flow. implies a dynamical system. Animated velocity fields is an important tool in understanding such complex phenomena. This paper looks at a number of techniques that animate velocity f ..."
Abstract
 Add to MetaCart
www.ese.ucsc.edu/researeh/avis/toxflow.html Abstract. A velocity field, even one that represents a steady state flow. implies a dynamical system. Animated velocity fields is an important tool in understanding such complex phenomena. This paper looks at a number of techniques that animate velocity
Results 1  10
of
17,179