236 citations · 793 across the 11 of their papers we have counts for
5 papers · 1 filter
PBH formation from spherically symmetric hydrodynamical perturbations: a review
Albert Escrivà
Primordial black holes, which could have been formed in the very early Universe due to the collapse of large curvature fluctuations, are nowadays one of the most attractive and fas…
Effects of the shape of curvature peaks on the size of primordial black holes
Albert Escrivà, Antonio Enea Romano
We simulate numerically the formation of spherically symmetric primordial black holes (PBHs) seeded by different families of primordial curvature perturbations profiles on a Friedm…
Analytical thresholds for black hole formation in general cosmological backgrounds
Albert Escrivà, Cristiano Germani, Ravi K. Sheth
We consider black holes which form from an initially spherically symmetric super-Hubble perturbation of a cosmological background filled by a perfect fluid with $w\in (0,1]…
A universal threshold for primordial black hole formation
Albert Escrivà, Cristiano Germani, Ravi K. Sheth
In this letter, we argue and show numerically that the threshold to form primordial black holes from an initial spherically symmetric perturbation is, to an excellent approximation…
Simulation of primordial black hole formation using pseudo-spectral methods
Albert Escrivà
In this work we have used for the first time pseudo-spectral methods to perform numerical simulations of spherically symmetric black hole formations on a Friedman-Robertson-Walker…