296 citations · 389 across the 5 of their papers we have counts for
13 papers · 1 filter
Energy conditions bounds and supernovae data
M. P. Lima, S. D. P. Vitenti, M. J. Reboucas
The energy conditions play an important role in the description of some important properties of the Universe, including the current accelerating expansion phase and the possible re…
Searching for non-Gaussianity in the WMAP data
A. Bernui, M. J. Reboucas
Some analyses of recent cosmic microwave background (CMB) data have provided hints that there are deviations from Gaussianity in the WMAP CMB temperature fluctuations. Given the fa…
Energy conditions bounds and their confrontation with supernovae data
M. P. Lima, S. Vitenti, M. J. Reboucas
The energy conditions play an important role in the understanding of several properties of the Universe, including the current accelerating expansion phase and the possible existen…
Energy conditions in f(R)-gravity
J. Santos, J. S. Alcaniz, M. J. Reboucas +1
In order to shed some light on the current discussion about f(R)-gravity theories we derive and discuss the bounds imposed by the energy conditions on a general f(R) functional for…
Lookback time bounds from energy conditions
J. Santos, J. S. Alcaniz, M. J. Reboucas +1
In general relativity, the energy conditions are invoked to restrict general energy-momentum tensors on physical grounds. We show that in the standard Friedmann-Lemaitre-Robertson-…
Mapping the large-scale anisotropy in the WMAP data
A. Bernui, B. Mota, M. J. Reboucas +1
Analyses of recent cosmic microwave background (CMB) observations have provided increasing indications for the existence of large scale anisotropy in the universe. Given the far re…