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20022009
most citedDark torsion as the cosmic speed-up

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16 papers · 1 filter

astro-ph20081.2k cited

Dark torsion as the cosmic speed-up

Gabriel Bengochea, Rafael Ferraro

It is shown that the recently detected acceleration of the universe can be understood by considering a modification of the teleparallel equivalent of General Relativity (TEGR), wit…

astro-ph200890 cited

Internal space structure generalization of the quintom cosmological scenario

Luis P. Chimento, Mónica Forte, Ruth Lazkoz +1

We introduce the Lagrangian for a multi-scalar field configuration in a -dimensional internal space endowed with a constant metric and generalize the quintom cosmologic…

astro-ph200826 cited

WMAP 5-year constraints on time variation of and in a detailed recombination scenario

Claudia G. Scóccola, Susana. J. Landau, Hector Vucetich

We study the role of fundamental constants in an updated recombination scenario. We focus on the time variation of the fine structure constant, and the electron mass in the early U…

astro-ph200838 cited

Early Universe Constraints on Time Variation of Fundamental Constants

Susana J. Landau, Mercedes E. Mosquera, Claudia G. Scoccola +1

We study the time variation of fundamental constants in the early Universe. Using data from primordial light nuclei abundances, CMB and the 2dFGRS power spectrum, we put constraint…

astro-ph200818 cited

Time variation of the electron mass in the early universe and the Barrow-Magueijo model

Claudia G. Scóccola, Mercedes E. Mosquera, Susana J. Landau +1

We put limits on the time variation of the electron mass in the early universe using observational primordial abundances of D, He4 and Li7, recent data from the Cosmic Microwave Ba…

astro-ph200824 cited

Gravitational lensing of transient neutrino sources by black holes

Ernesto F. Eiroa, Gustavo E. Romero

In this work we study gravitational lensing of neutrinos by Schwarzschild black holes. In particular, we analyze the case of a neutrino transient source associated with a gamma-ray…