3 papers
Curvature--Radiation Geometries Across the Second CHIME/FRB Fast Radio Burst Population
Thonimar V. Alencar, Jéferson A. S. Fortunato, Wiliam S. Hipólito-Ricaldi
We present a population-level spectral analysis of fast radio bursts from the second CHIME/FRB catalog using three curvature-radiation-motivated templates: point-source, one-dimens…
Probing Cosmic Curvature with Fast Radio Bursts and DESI DR2
Jéferson A. S. Fortunato, Wiliam S. Hipólito-Ricaldi, Gustavo E. Romero
The spatial curvature of the Universe remains a central question in modern cosmology. In this work, we explore the potential of localized Fast Radio Bursts (FRBs) as a novel tool t…
Viability of general relativity and modified gravity cosmologies using high-redshift cosmic probes
Fernanda Oliveira, Bruno Ribeiro, Wiliam S. Hipólito-Ricaldi +2
Several models based on General Relativity and Modified Gravity aim to reproduce the observed universe with precision comparable to the flat-CDM cosmological model. In this stu…