418 citations · 4.7k across the 87 of their papers we have counts for
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Late Gas accretion onto Primordial Minihalos: a Model for Leo T, Dark Galaxies and Extragalactic High-Velocity Clouds
Massimo Ricotti
In this letter we revisit the idea of reionization feedback on dwarf galaxy formation. We show that primordial minihalos with v_cir<20 km/s stop accreting gas after reionization, a…
Pre-reionization Fossils, Ultra-faint Dwarfs and the Missing Galactic Satellite Problem
Mia S. Bovill, Massimo Ricotti
We argue that, at least a fraction of the newly discovered population of ultra-faint dwarf spheroidal galaxies in the Local Group constitute the fossil relic of a once ubiquitous p…
The Fate of the First Galaxies. III. Properties of Primordial Dwarf Galaxies and their Impact on the Intergalactic Medium
Massimo Ricotti, Nickolay Y. Gnedin, J. Michael Shull
In two previous papers, we presented simulations of the first galaxies in a representative volume of the Universe. The simulations are unique because we model feedback-regulated ga…
Effect of Primordial Black Holes on the Cosmic Microwave Background and Cosmological Parameter Estimates
Massimo Ricotti, Jeremiah P. Ostriker, Katherine J. Mack
We investigate the effect of non-evaporating primordial black holes (PBHs) on the ionization and thermal history of the universe. X-rays emitted by gas accretion onto PBHs modify t…
Bondi accretion in the early universe
Massimo Ricotti
This paper presents a study of quasi-steady spherical accretion in the early Universe, before the formation of the first stars and galaxies. The main motivation is to derive the ba…
Is the Concentration of Dark Matter Halos at Virialization Universal ?
Massimo Ricotti, Andrew Pontzen, Matteo Viel
Several recent studies suggest a correlation between dark matter halo mass and the shape of the density profile. We re-analyze simulations from Ricotti (2003) in which such a corre…