106 citations · 353 across the 18 of their papers we have counts for
18 papers
Cosmological Remapping for Efficient Generation of 21 cm Intensity Mapping Mocks
Rahima Mokeddem, Bruno B. Bizarria, Jiajun Zhang +10
We present a novel application of cosmological rescaling, or "remapping," to generate 21 cm intensity mapping mocks for different cosmologies. The remapping method allows for compu…
Probing cosmic isotropy: Hubble constant and matter density large-angle variations with the Pantheon+SH0ES data
Rahima Mokeddem, Maria Lopes, Felipe Avila +2
In this study we investigate potential large-angle anisotropies in the angular distribution of the cosmological parameters (the Hubble constant) and (the matter density…
Cosmic slowing down of acceleration with the Chaplygin-Jacobi gas as a dark fluid?
J. A. S. Fortunato, W. S. Hipolito-Ricaldi, N. Videla +1
A particular generalization of the Chaplygin inflationary model, using the formalism of Hamilton-Jacobi and elliptic functions, results in a more general non-linear Chaplygin-type…
Excess of lensing amplitude in the Planck CMB power spectrum
Rahima Mokeddem, Wiliam S. Hipólito-Ricaldi, Armando Bernui
Precise measurements of the Planck cosmic microwave background (CMB) angular power spectrum (APS) at small angles have stimulated accurate statistical analyses of the lensing ampli…
Brans-Dicke unimodular gravity
Alexandre M. R. Almeida, Júlio C. Fabris, Mahamadou Hamani Daouda +3
We propose a unimodular version of the Brans-Dicke theory designed with a constrained Lagrangian formulation. The resulting field equations are traceless. The vacuum solutions in t…
Cosmological framework for renormalization group extended gravity at the action level
Nicolas R. Bertini, Wiliam S. Hipolito-Ricaldi, Felipe de Melo-Santos +1
General relativity (GR) extensions based on renormalization group (RG) flows may lead to scale-dependent couplings with nontrivial effects at large distance scales. Here we develop…