2.3k citations · 46.3k across the 327 of their papers we have counts for
6 papers · 2 filters
Feedback and the fudamental line of low-luminosity LSB/dwarf galaxies
Avishai Dekel, Joanna Woo
We study in simple terms the role of feedback in establishing the scaling relations of low-surface-brightness and dwarf galaxies with stellar masses in the range 6x10^5 <M*< 3x10^1…
Dark-Halo Cusp: Asymptotic Convergence
Avishai Dekel, Itai Arad, Jonathan Devor +1
We propose a model for how the buildup of dark halos by merging satellites produces a characteristic inner cusp, of a density profile ρ\prop r^-a with a -> a_as > 1, as seen in cos…
Galactic halo cusp-core: tidal compression in mergers
Avishai Dekel, Jonathan Devor, Guy Hetzroni
We explain in simple terms how the buildup of dark haloes by merging compact satellites, as in the CDM cosmology, inevitably leads to an inner cusp of density profile $ρ\propto r^{…
Resolving the Spin Crisis: Mergers and Feedback
Avishai Dekel, Ariyeh H. Maller
We model in simple terms the angular momentum (J) problem of galaxy formation in CDM, and identify the key elements of a scenario that can solve it. The buildup of J is modeled via…
Galactic Halo Cusp versus Core: Tidal Effects in Mergers
Avishai Dekel, Jonathan Devor, Itai Arad
We show how the buildup of halos by merging satellites forces an inner cusp, with a density profile ρ\propto r^{-α} where α\to α_a \gsim 1$. Our analysis is based on a new prescrip…
Towards a Resolution of the Galactic Spin Crisis: Mergers, Feedback, and Spin Segregation
Ariyeh H. Maller, Avishai Dekel
We model in simple terms the angular-momentum problems of galaxy formation in CDM cosmologies, and identify the key elements of a scenario that may solve them. The buildup of angul…