383 citations · 9k across the 157 of their papers we have counts for
6 papers · 2 filters
The spherical collapse model in a universe with cosmological constant
Ewa L. Lokas, Y. Hoffman
We generalize the spherical collapse model for the formation of dark matter halos to apply in a universe with arbitrary positive cosmological constant. We calculate the critical co…
Reconstruction of the Zone of Avoidance
Yehuda Hoffman
The uncovering of the large-scale structure that is hidden in the Zone of Avoidance is essential to our quest for the understanding of the dynamics of the nearby universe. Dedicate…
Deprojection Galaxy Cluster X-ray, Sunyaev-Zel'dovich Temperature Decrement and Weak Lensing Mass Maps
S. Zaroubi, G. Squires, G. de Gasperis +3
A general method of deprojecting two-dimensional images to reconstruct the three dimensional structure of the projected object --specifically X-ray, Sunyaev-Zel'dovich (SZ) and gra…
Large-Scale Power Spectrum and Structures From the ENEAR galaxy Peculiar Velocity Catalog
S. Zaroubi, M. Bernardi, L. N. da Costa +5
We estimate the mass density fluctuations power spectrum (PS) on large scales by applying a maximum likelihood technique to the peculiarvelocity data of the recently completed reds…
Formation of cuspy density profiles - a generic feature of collisionless gravitational collapse
Ewa L. Lokas, Yehuda Hoffman
Using the formalism of the spherical infall model the structure of collapsed and virialized dark halos is calculated for a variety of scale-free initial conditions. In spite of the…
Goodness-of-Fit Analysis of Radial Velocities Surveys
Yehuda Hoffman, Saleem Zaroubi
Using eigenmode expansion of the Mark-3 and SFI surveys of cosmological radial velocities a goodness-of-fit analysis is applied on a mode-by-mode basis. This differential analysis…