3 papers
Scale-dependent and background-preserving gravity from an action: cosmological tests
Wiliam S. Hipólito-Ricaldi, Rodrigo von Marttens, Felipe de Melo-Santos +1
We investigate the observational implications of a gravitational model wherein the gravitational constant and the cosmological constant exhibit scale-dependent behavior at…
Dipolar fluence distribution of statistically isotropic FERMI gamma-ray bursts
Maria Lopes, Armando Bernui, Wiliam S. Hipólito-Ricaldi +2
We investigated the large-angle distribution of the gamma-ray bursts (GRBs) from the updated FERMI/GBM catalog to probe the statistical isotropy of these astrophysical transient ev…
Fast Radio Bursts and Artificial Neural Networks: a cosmological-model-independent estimation of the Hubble Constant
Jéferson A. S. Fortunato, David J. Bacon, Wiliam S. Hipólito-Ricaldi +1
Fast Radio Bursts (FRBs) have emerged as powerful cosmological probes in recent years offering valuable insights into cosmic expansion. These predominantly extragalactic transients…