18 citations · 26 across the 2 of their papers we have counts for
3 papers
gr-qc2008★ 8 cited
Probing the creatable character of perturbed Friedmann-Robertson-Walker universes
Ramon Lapiedra, Diego Sáez
We discuss whether some perturbed Friedmann-Robertson-Walker (FRW) universes could be creatable, i. e., could have vanishing energy, linear momentum and angular momentum, as it cou…
astro-ph2007★ 18 cited
Evolution of polarization orientations in a flat universe with vector perturbations: CMB and quasistellar objects
Juan Antonio Morales, Diego Sáez
Various effects produced by vector perturbations (vortical peculiar velocity fields) of a flat Friedmann-Robertson-Walker background are considered. In the presence of this type of…
astro-ph2003
Non-Gaussian Signatures in the Lens Deformations of the CMB Sky. A New Ray-Tracing Procedure
P. Cerdá-Durán, V. Quilis, D. Sáez
We work in the framework of an inflationary cold dark matter universe with cosmological constant, in which the cosmological inhomogeneities are considered as gravitational lenses f…