2 citations · 3 across the 2 of their papers we have counts for
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Characteristic Scales in Galaxy Formation
Avishai Dekel
Recent data, e.g. from SDSS and 2dF, reveal a robust bi-modality in the distribution of galaxy properties, with a characteristic transition scale at stellar mass M_*~3x10^{10} Msun…
Scaling Relations of Local Spiral Galaxies.I. Observational Foundations
Stephane Courteau, Lauren A. MacArthur, Avishai Dekel +3
(Abridged) This paper presents an exploration of two fundamental scaling relations of spiral galaxies, the luminosity-rotation speed (or Tully-Fisher; TF) relation, and the size-lu…
Photo-evaporation by thermal winds in dwarf galaxies
Nir J. Shaviv, Avishai Dekel
We revisit the evaporation process of gas from dwarf galaxies after it has been photo-ionized by the UV flux from the first stars and AGNs and heated to T~10^4K or 2x10^4K respecti…
Galactic Halo Cusp versus Core: Tidal Effects in Mergers
Avishai Dekel, Jonathan Devor, Itai Arad
We show how the buildup of halos by merging satellites forces an inner cusp, with a density profile ρ\propto r^{-α} where α\to α_a \gsim 1$. Our analysis is based on a new prescrip…
Concentrations and Assembly Histories of Dark Matter Halos
Risa H. Wechsler, James S. Bullock, J. R. Primack +2
We study the relation between the density profiles of dark matter halos and their mass assembly histories, using a statistical sample of halos in a high-resolution N-body simulatio…
Cosmic Flows: A Status Report
Stephane Courteau, Avishai Dekel
We give a brief review of recent developments in the study of the large-scale velocity field of galaxies since the international workshop on Cosmic Flows held in July 1999 in Victo…