75 citations · 154 across the 9 of their papers we have counts for
7 papers · 1 filter
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…
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…
On general features of warm dark matter with reduced relativistic gas
W. S. Hipolito-Ricaldi, R. F. vom Marttens, J. C. Fabris +2
Reduced Relativistic Gas (RRG) is a useful approach to describe the warm dark matter (WDM) or the warmness of baryonic matter in the approximation when the interaction between the…
Does a generalized Chaplygin gas correctly describe the cosmological dark sector?
R. F. vom Marttens, L. Casarini, W. Zimdahl +2
Yes, but only for a parameter value that makes it almost coincide with the standard model. We reconsider the cosmological dynamics of a generalized Chaplygin gas (gCg) which is spl…
CMB and matter power spectra with non-linear dark-sector interactions
R. F. vom Marttens, L. Casarini, W. S. Hipólito-Ricaldi +1
An interaction between dark matter and dark energy, proportional to the product of their energy densities, results in a scaling behavior of the ratio of these densities with respec…