We search for ultra-light axions as dark matter (DM) and dark energy particle candidates, for
axion masses 10-32 eV≤ ma≤ 10-24 eV, by a joint analysis of cosmic microwave …

We analyze a cosmological model featuring an interaction between dark energy and dark
matter in light of the measurements of the Cosmic Microwave Background released by three …

This paper introduces the class of omnipotent dark energy (DE) models characterized by
nonmonotonic energy densities that are capable of attaining negative values with …

The cosmic microwave background (CMB) temperature and polarization anisotropies, as
observed by independent astronomical missions such as WMAP, Planck, and most recently …

Spatial curvature is one of the most fundamental parameters in our current concordance flat
ΛCDM model of the Universe. The goal of this work is to investigate how the constraint on …

The growth of large-scale structure, as revealed in the anisotropic of clustering of galaxies in
the low redshift Universe at z< 2, provides a stringent test of our cosmological model. The …

The standard Λ CDM model of cosmology is largely successful in describing many
observations, including precise measurements of the Cosmic Microwave Background (CMB) …

Abstract The Cosmic Microwave Background (CMB) is a fundamental component of modern
cosmology, providing a wealth of information about the early universe. It is a faint radiation …

We revisit the possibility of using cosmological observations to constrain models that involve
interactions between neutrinos and dark matter. We show that small-scale measurements of …

Abstract Early Dark Energy (EDE), a new form of dark energy active before recombination,
has emerged as a promising way to explain the Hubble tension. This chapter summarizes …