3 papers
astro-ph.CO2026
Cosmological Signatures of Curvature-Coupled Dark Energy
Abdolali Banihashemi, Farbod Hassani, Alessandro Casalino +2
We study a curvature-coupled dark energy model that can modify cosmological evolution both before recombination and during the late-time accelerated era. The model belongs to the c…
astro-ph.CO2026
Mass-Varying Neutrinos from an Inverse Symmetron
Mainak Baidya, Øyvind Christiansen, Vitor da Fonseca +2
Neutrinos enter cosmology in different ways and are constrained by distinct observational probes across different epochs: as a relativistic species at high redshift, as a massive b…
astro-ph.CO2024
asimulation: Domain formation and impact on observables in resolved cosmological simulations of the (a)symmetron
Øyvind Christiansen, Farbod Hassani, David F. Mota
The symmetron is a dark energy and dark matter candidate that forms topological defects in the late-time universe and holds the promise of resolving some of the cosmological tensio…