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4 papers · 2 filters
Testing the theory of gravity with DESI: estimators, predictions and simulation requirements
Shadab Alam, Christian Arnold, Alejandro Aviles +33
Shortly after its discovery, General Relativity (GR) was applied to predict the behavior of our Universe on the largest scales, and later became the foundation of modern cosmology.…
Current constraints on deviations from General Relativity using binning in redshift and scale
Cristhian Garcia-Quintero, Mustapha Ishak, Orion Ning
We constrain deviations from general relativity (GR) including both redshift and scale dependencies in the modified gravity (MG) parameters. In particular, we employ the under-used…
Matter Power Spectrum Emulator for f(R) Modified Gravity Cosmologies
Nesar Ramachandra, Georgios Valogiannis, Mustapha Ishak +1
Testing a subset of viable cosmological models beyond General Relativity (GR), with implications for cosmic acceleration and the Dark Energy associated with it, is within the reach…
Singling out modified gravity parameters and datasets reveals a dichotomy between Planck and lensing
Cristhian Garcia-Quintero, Mustapha Ishak
An important route to testing General Relativity (GR) at cosmological scales is usually done by constraining modified gravity (MG) parameters added to the Einstein perturbed equati…