155 citations · 311 across the 11 of their papers we have counts for
11 papers
Spherical collapse of non-top-hat profiles in the presence of dark energy with arbitrary sound speed
R. C. Batista, H. P. de Oliveira, L. R. W. Abramo
We study the spherical collapse of non-top-hat matter fluctuations in the presence of dark energy with arbitrary sound speed. The model is described by a system of partial differen…
Scaling of the 1-halo terms with bias
L. Raul Abramo, Irène Balmès, Fabien Lacasa +1
In the Halo Model, galaxies are hosted by dark matter halos, while the halos themselves are biased tracers of the underlying matter distribution. Measurements of galaxy correlation…
Fourier analysis of multi-tracer cosmological surveys
L. Raul Abramo, Lucas F. Secco, Arthur Loureiro
We present optimal quadratic estimators for the Fourier analysis of cosmological surveys that detect several different types of tracers of large-scale structure. Our estimators can…
CMB and Random Flights: temperature and polarization in position space
Paulo H. F. Reimberg, L. Raul Abramo
The fluctuations in the temperature and polarization of the cosmic microwave background are described by a hierarchy of Boltzmann equations. In its integral form, this Boltzmann hi…
CMB in a box: causal structure and the Fourier-Bessel expansion
L. Raul Abramo, Paulo H. Reimberg, Henrique S. Xavier
This paper makes two points. First, we show that the line-of-sight solution to cosmic microwave anisotropies in Fourier space, even though formally defined for arbitrarily large wa…
Searching for planar signatures in WMAP
L. Raul Abramo, Armando Bernui, Thiago S. Pereira
We search for planar deviations of statistical isotropy in the Wilkinson Microwave Anisotropy Probe (WMAP) data by applying a recently introduced angular-planar statistics both to…