activity
20042023
most citedNon-Gaussian initial conditions in CDM: Newtonian, relativistic and primordial contributions

54 citations · 686 across the 46 of their papers we have counts for

collaborators

45 papers

astro-ph.CO2023★ 7 cited

Constraints on primordial black holes for nonstandard cosmologies

Tadeo D. Gomez-Aguilar, Luis E. Padilla, Encieh Erfani +1

We study how the bounds on the abundance of Primordial Black Holes (PBHs) and the constraints on power spectrum are modified if a non-standard evolution phase takes place between t…

astro-ph.CO2023

Solution for cosmological observables in the Starobinsky model of inflation

Gabriel German, Juan Carlos Hidalgo, Luis E. Padilla

This paper focuses on the Starobinsky model of inflation. We derive solutions for various cosmological observables, such as the scalar spectral index , the tensor-to-scalar ra…

gr-qc2023

Growth rate of spherical voids with non-comoving Dark Matter and Baryons

Fernando A. Pizaña, Juan Carlos Hidalgo, Ismael Delgado Gaspar +1

We present numerical solutions to Einstein's equations describing large spherical cosmic voids constituted by two components; dark matter and baryons, with a non-vanishing initial…

astro-ph.CO2023

Constraining inflationary potentials with inflaton PBHs

Luis E. Padilla, Juan Carlos Hidalgo, Gabriel German

If, after primordial inflation, the universe undergoes a relatively long reheating period, it could present a phase of matter domination supported by the oscillating inflaton field…

astro-ph.CO2022★ 13 cited

Production of PBHs from inflaton structure

Juan Carlos Hidalgo, Luis E. Padilla, Gabriel German

At times prior to Big Bang Nucleosynthesis, the universe could show a primordial structure formation period if dominated by a fast oscillating inflaton field during reheating. In t…

astro-ph.CO2022★ 1 cited

Hierarchical Merger of Primordial Black Holes in Dwarf Galaxies

Encieh Erfani, Tadeo D. Gomez-Aguilar, Juan Carlos Hidalgo

We study the merger history of primordial black holes (PBHs) in a scenario where they represent the dominant dark matter component of a typical dwarf galaxies' core. We investigate…