Artículos de revistas
Time variation of the electron mass in the early universe and the Barrow-Magueijo model
Fecha
2008-12Registro en:
Scoccola, Claudia Graciela; Mosquera, Mercedes Elisa; Landau, Susana Judith; Vucetich, Hector; Time variation of the electron mass in the early universe and the Barrow-Magueijo model; IOP Publishing; Astrophysical Journal; 681; 2; 12-2008; 737-746
0004-637X
CONICET Digital
CONICET
Autor
Scoccola, Claudia Graciela
Mosquera, Mercedes Elisa
Landau, Susana Judith
Vucetich, Hector
Resumen
We put limits on the time variation of the electron mass in the early universe using observational primordial abundances of D, 4He, and 7Li, recent data from the cosmic microwave background, and the 2dFGRS power spectrum. Furthermore, we use these constraints together with other astronomical and geophysical bounds from the late universe to test the Barrow-Magueijo model for the variation in me . From our analysis we obtain 0:615 < G!/c4 < 0:045 (3 interval ), in disagreement with the result obtained in the original paper.