3 papers
astro-ph.CO2026
Dark matter-baryons elastic coupling
David Figueruelo, Florencia Anabella Teppa Pannia
We consider a cosmological model where dark matter and baryons interact via a pure momentum transfer. We present the foundations of the interaction and derive its main equations. I…
astro-ph.CO2026
A solid unification of the dark sector
Jose Beltrán Jiménez, MarÃa Pérez Garrote, Florencia A. Teppa Pannia +1
We construct a unified description of dark matter and dark energy in terms of a single dark component that behaves as a pressureless fluid in the early Universe and undergoes a tra…
astro-ph.CO2026
Revisiting observational constraints on coupled exponential quintessence with energy and momentum transfers: degeneracy with massive neutrinos
Jose Beltrán Jiménez, Kiyotomo Ichiki, Xiaolin Liu +2
We investigate the impact of massive neutrinos on cosmological models in which dark energy, described by a quintessence scalar field with an exponential potential, interacts w…