76 citations · 77 across the 2 of their papers we have counts for
6 papers · 1 filter
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…
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…
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…
Winds and Infalling Gas in Lyman Break Galaxies
A. Ferrara, M. Ricotti
A model for gas outflows is proposed which simultaneously explains the correlations between the (i) equivalent width of low ionization and Ly-alpha lines, (ii) outflow velocity, an…
Reionisation: the role of Globular Clusters
Massimo Ricotti
In this talk I discuss the role of proto-globular clusters as the dominant sources of radiation that reionised hydrogen in the intergalactic medium (IGM) at redshift z~6. Observati…