151 citations · 943 across the 27 of their papers we have counts for
3 papers · 1 filter
Evolution of density perturbations in decaying vacuum cosmology
H. A. Borges, S. Carneiro, J. C. Fabris +1
We study cosmological perturbations in the context of an interacting dark energy model, in which the cosmological term decays linearly with the Hubble parameter, with concomitant m…
Observational constraints on late-time Lambda(t) cosmology
S. Carneiro, M. A. Dantas, C. Pigozzo +1
The cosmological constant, i.e., the energy density stored in the true vacuum state of all existing fields in the Universe, is the simplest and the most natural possibility to desc…
Supernova constraints on decaying vacuum cosmology
S. Carneiro, C. Pigozzo, H. A. Borges +1
There is mounting observational evidence that the expansion of our Universe is undergoing a late-time acceleration. Among many proposals to describe this phenomenon, the cosmologic…