13 citations · 72 across the 8 of their papers we have counts for
8 papers
The pristine nature of SMSS 16051443 revealed by ESPRESSO
D. S. Aguado, E. Caffau, P. Molaro +20
SMSS J160540.18144323.1 is the carbon-enhanced metal-poor (CEMP) star with the lowest iron abundance ever measured, [Fe/H]=-6.2, which was first reported with the SkyMapper tele…
Quantum Cosmology with many fluids and the choice of cosmological time
G. A. Monerat, C. G. M. Santos, F. G. Alvarenga +4
In this work we propose the quantization of a cosmological model describing the primordial universe filled with five barotropic fluids, namely: radiation, dust, vacuum, cosmic stri…
Gravitational Effects of Varying Alpha Strings
J. Menezes, P. P. Avelino, C. Santos
We study spatial variations of the fine-structure constant in the presence of static straight cosmic strings in the weak-field approximation in Einstein gravity. We work in the con…
Evolution of the fine-structure constant in the non-linear regime
P. P. Avelino, C. J. A. P. Martins, J. Menezes +1
We study the evolution of the fine-structure constant, , induced by non-linear density perturbations in the context of the simplest class of quintessence models with a non-minim…
Varying Alpha Monopoles
J. Menezes, P. P. Avelino, C. Santos
We study static magnetic monopoles in the context of varying alpha theories and show that there is a group of models for which the t'Hooft-Polyakov solution is still valid. Neverth…
Cosmic strings in Bekenstein-type models
J. Menezes, P. P. Avelino, C. Santos
We study static cosmic string solutions in the context of Bekenstein-type models. We show that there is a class of models of this type for which the classical Nielsen-Olesen vortex…