10 citations · 24 across the 4 of their papers we have counts for
4 papers
Stochastic contribution to the growth factor in the LCDM model
A. L. B. Ribeiro, A. P. A. Andrade, P. S. Letelier
We study the effect of noise on the evolution of the growth factor of density perturbations in the context of the LCDM model. Stochasticity is introduced as a Wiener process amplif…
Gradient Pattern Analysis of Cosmic Structure Formation: Norm and Phase Statistics
Ana Paula Andrade, Andre Luis B. Ribeiro, Reinaldo R. Rosa
This paper presents the preliminary results of the characterization of pattern evolution in the process of cosmic structure formation. We are applying on N-body cosmological simula…
High Order Correction Terms for The Peak-Peak Correlation Function in Nearly-Gaussian Models
Ana Paula Andrade, André Luís B. Ribeiro, Carlos Alexandre Wuensche
One possible way to investigate the nature of the primordial power spectrum fluctuations is by investigating the statistical properties of the local maximum in the density fluctuat…
Predictions of mixed non-Gaussian cosmological density fields for the cosmic microwave background radiation
Ana Paula Andrade, Carlos Alexandre Wuensche, Andre Luiz B. Ribeiro
We present simulations of the Cosmic Microwave Background Radiation (CMBR) power spectrum for a class of mixed, non-Gaussian, primordial random fields. We assume a skew positive mi…