4 citations · 6 across the 6 of their papers we have counts for
4 papers · 1 filter
Isotropic universes with a preferred direction
Jose Beltrán Jiménez, Shinji Tsujikawa
We present a class of cosmological scenarios in which a preferred spatial direction in the matter sector coexists with an exactly homogeneous and isotropic Friedmann--Lema\^ıtre--R…
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 wi…
Updates on dipolar anisotropy in local measurements of the Hubble constant from Cosmicflows-4
Vincenzo Salzano, J. Beltrán Jiménez, Dario Bettoni +2
We investigate the angular anisotropy of the Hubble constant using the Cosmicflows-4 catalogue, with particular emphasis on three issues often treated only implicitly in the litera…
Effective field theory of coupled dark energy and dark matter
Katsuki Aoki, Jose Beltrán Jiménez, Masroor C. Pookkillath +1
We formulate an effective field theory (EFT) of coupled dark energy (DE) and dark matter (DM) interacting through energy and momentum transfers. In the DE sector, we exploit the EF…