Search Results - "Kolatt, T. S."

Profiles of dark haloes: evolution, scatter and environment by Bullock, J. S., Kolatt, T. S., Sigad, Y., Somerville, R. S., Kravtsov, A. V., Klypin, A. A., Primack, J. R., Dekel, A.

“…We study dark matter halo density profiles in a high-resolution N-body simulation of a ΛCDM cosmology. Our statistical sample contains ∼5000 haloes in the…”
Get full text

A Universal Angular Momentum Profile for Galactic Halos by Bullock, J. S, Dekel, A, Kolatt, T. S, Kravtsov, A. V, Klypin, A. A, Porciani, C, Primack, J. R

Get full text

Young Galaxies: What Turns Them On? by Kolatt, T. S, Bullock, J. S, Somerville, R. S, Sigad, Y, Jonsson, P, Kravtsov, A. V, Klypin, A. A, Primack, J. R, Faber, S. M, Dekel, A

Get full text

How to plant a merger tree by Somerville, Rachel S., Kolatt, Tsafrir S.

“…We investigate several approaches for constructing Monte Carlo realizations of the merging history of virialized dark matter haloes (‘merger trees’) using the…”
Get full text

Proper Motions of VLBI Lenses, Inertial Frames, and the Evolution of Peculiar Velocities by Kochanek, C. S, Kolatt, T. S, Bartelmann, M

“…Abstract only…”
Get full text

Constraints on cosmological anisotropy out to z = 1 from Type Ia supernovae by Kolatt, Tsafrir S., Lahav, Ofer

“…A combined sample of 79 high- and low-redshift Type Ia supernovae (SNe) is used to set constraints on the degree of anisotropy in the Universe out to z≃1…”
Get full text

Determination of the Primordial Magnetic Field Power Spectrum by Faraday Rotation Correlations by Kolatt, Tsafrir

Get full text

Large-scale mass distribution behind the Galactic plane by Kolatt, Tsafrir, Dekel, Avishai, Lahav, Ofer

“…We map the 1200 km s–1smoothed mass-density distribution in the Galactic zone of avoidance (ZOA), within 6000 km s–1 of the Local Group, using POTENT…”
Get full text

Evaluating approximations for halo merging histories by Somerville, Rachel S., Lemson, Gerard, Kolatt, Tsafrir S., Dekel, Avishai

“…We study the merging history of dark matter haloes in N-body simulations and semi-analytical ‘merger trees’ based on the extended Press-Schechter (EPS)…”
Get full text

Profiles of dark haloes: evolution, scatter and environment by Bullock, J. S., Kolatt, T. S., Sigad, Y., Somerville, R. S., Kravtsov, A. V., Klypin, A. A., Primack, J. R., Dekel, A.

Get full text

Gravitational lensing of type Ia supernovae by galaxy clusters by Kolatt, Tsafrir S., Bartelmann, Matthias

“…We propose a method to remove the mass-sheet degeneracy that arises when the mass of galaxy clusters is inferred from gravitational shear. The method utilizes…”
Get full text

The Velocity Function of Galaxies by Gonzalez, Anthony H, Williams, Kurtis A, Bullock, James S, Kolatt, Tsafrir S, Primack, Joel R

Get full text

Lensing by Lyman-Limit Systems: Determining the Mass-to-Gas Ratio by Maller, Ariyeh H, Kolatt, Tsafrir S, Bartelmann, Matthias, Blumenthal, George R

Get full text

Proper Motions Of VLBI Lenses, Inertial Frames and The Evolution of Peculiar Velocities by Kochanek, C. S, Kolatt, T. S, Bartelmann, M

“…Precise determinations of the image positions in quad gravitational lenses using VLBI can be used to measure the transverse velocity of the lens galaxy and the…”
Get full text

Galaxy Interactions and Starbursts at High Redshift by Somerville, R. S, Rosenfeld, G, Kolatt, T. S, Dekel, A, Mihos, J. C, Primack, J. R

“…Using high resolution N-body simulations with hydrodynamics and star formation, we investigate interactions and the resulting starbursts in galaxies with…”
Get full text

Spin Profile of Galactic Halos and Disk Formation by Dekel, A, Bullock, J. S, Porciani, C, Kravtsov, A. V, Kolatt, T. S, Klypin, A. A, Primack, J. R

“…We summarize recent developments in the study of the origin of halo spin profiles and preliminary implications on disk formation. The specific angular-momentum…”
Get full text