3 papers
astro-ph.CO2025
Cosmological dynamics and observational constraints of an interacting early scalar field coupled to radiation
Dorian Araya, Felipe Herrera, Nelson Videla
We study the cosmic evolution of an interacting scalar field radiation model, in which a minimally coupled scalar field exchanges energy with the radiation sector through an expone…
astro-ph.CO2025
Extended datasamples under the lens of Brane World Theory
Kyra Jacobo, Dorian Araya
This work revises the Brane World Theory known as Randall-Sundrum with the modification of an exponential, redshift-dependent brane tension. This model is studied in a scenario ass…
astro-ph.CO2025
- cosmological model with new data samples of cosmological observations
Dorian Araya, Cristian Castillo, Genly Leon +3
We revisit a cosmological model where dark matter (DM) and dark energy (DE) follow barotropic equations of state, allowing deviations from the standard CDM framework (i.e. $w_{d…