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astro-ph2004
Generalized Chaplygin Gas in a modified gravity approach
T. Barreiro, A. A. Sen
We study the generalized Chaplygin gas (GCG) scenario in a modified gravity approach. That is, we impose that our universe has a pure dust configuration, and allow for a modificati…
astro-ph2004
The Revival of the Unified Dark Energy-Dark Matter Model ?
M. C. Bento, O. Bertolami, A. A. Sen
We consider the generalized Chaplygin gas (GCG) proposal for unification of dark energy and dark matter and show that it admits an unique decomposition into dark energy and dark ma…
astro-ph2003
WMAP Constraints on Quintessence
T. Barreiro, M. C. Bento, N. M. C. Santos +1
We use recent results from the Wilkinson Microwave Anisotropy Probe (WMAP) for the locations of peaks and troughs of the Cosmic Microwave Background (CMB) power spectrum, together…