55 citations · 142 across the 15 of their papers we have counts for
5 papers · 1 filter
Efficient analytic approximation for small-scale non-cold relic perturbations
Nanoom Lee, Yacine Ali-Haïmoud, Marc Kamionkowski
We develop a highly accurate analytic approximation for small-scale non-cold relic perturbations by solving the collisionless Boltzmann equation in the quasi-stationary regime. The…
Rapid and accurate numerical evolution of linear cosmological perturbations with non-cold relics
Nanoom Lee, José Luis Bernal, Sven Günther +2
We describe the implementation of a new approach to the numerical evaluation of the effects of non-cold relics on the evolution of cosmological perturbations. The Boltzmann hierarc…
What it takes to solve the Hubble tension through scale-dependent modifications of the primordial power spectrum
Nanoom Lee, Matteo Braglia, Yacine Ali-Haïmoud
We investigate scale-dependent modifications to the primordial scalar power spectrum as potential solutions to the Hubble tension. We use the Fisher-bias formalism, recently adapte…
Extending evolution mapping to massive neutrinos with COMET
A. Pezzotta, A. Eggemeier, G. Gambardella +7
We introduce an extension of the evolution mapping framework to cosmological models that include massive neutrinos. The original evolution mapping framework exploits a degeneracy i…
Boosting galaxy clustering analyses with non-perturbative modelling of redshift-space distortions
Alexander Eggemeier, Nanoom Lee, Román Scoccimarro +4
Redshift-space distortions (RSD), caused by the peculiar velocities of galaxies, are a key modelling challenge in galaxy clustering analyses, limiting the scales from which cosmolo…