147 citations · 1.8k across the 70 of their papers we have counts for
4 papers · 1 filter
Searching for the first stars with the Gaia mission
Rafael S. de Souza, Alberto Krone-Martins, Emille E. O. Ishida +1
We construct a theoretical model to predict the number of orphan afterglows (OA) from gamma-ray bursts (GRBs) triggered by primordial metal-free (Pop III) stars expected to be obse…
Probing cosmic star formation up to z = 9.4 with GRBs
Emille E. O. Ishida, Rafael S. de Souza, Andrea Ferrara
We propose a novel approach, based on Principal Components Analysis, to the use of Gamma-Ray Bursts (GRBs) as probes of cosmic star formation history (SFH) up to very high redshift…
The Effect of a Single Supernova Explosion on the Cuspy Density Profile of a Small-Mass Dark Matter Halo
Rafael S. de Souza, Luiz Felippe S. Rodrigues, Emille E. O. Ishida +1
Some observations of galaxies, and in particular dwarf galaxies, indicate a presence of cored density profiles in apparent contradiction with cusp profiles predicted by dark matter…
Hubble parameter reconstruction from a principal component analysis: minimizing the bias
Emille E. O. Ishida, Rafael S. de Souza
A model-independent reconstruction of the cosmic expansion rate is essential to a robust analysis of cosmological observations. Our goal is to demonstrate that current data are abl…