3 papers
astro-ph.CO2024
Non-parametric reconstruction of cosmological observables using Gaussian Processes Regression
José de Jesús Velázquez, Luis A. Escamilla, Purba Mukherjee +1
The current accelerated expansion of the Universe remains ones of the most intriguing topics in modern cosmology, driving the search for innovative statistical techniques. Recent a…
astro-ph.CO2024
Do we need wavelets in the late Universe?
Luis A. Escamilla, Emre Özülker, Özgür Akarsu +2
We parameterize the Hubble function by adding Hermitian wavelets to the Hubble radius of CDM. This allows us to build Hubble functions that oscillate around CDM at late times…
gr-qc2020
Bayesian model selection on Scalar -Field Dark Energy
J. Alberto Vázquez, David Tamayo, Anjan A. Sen +1
The main aim of this paper is to analyse minimally-coupled scalar-fields -- quintessence and phantom -- as the main candidates to explain the accelerated expansion of the universe…