540 citations · 1.6k across the 27 of their papers we have counts for
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Constraining Ultralight Dark Matter in Dynamical Dark Energy Cosmologies
Muhammad Awais, Hafiz Inam Ullah, Rafael C. Nunes +2
We investigate the cosmological implications of scalar-field dark matter (SFDM) in a dynamical dark energy framework, extending previous analyses that considered SFDM within the st…
Hunting Thermal Relics in the DESI DR1 Ly Forest
Emanuelly Silva, Artur Ladeira, Rafael C. Nunes +1
We investigate constraints on additional relativistic species and thermal sterile neutrinos using the DESI DR1 one-dimensional Lyman- forest power spectrum, combined with Planck…
Testing MOND-like modifications to gravity using growth-rate measurements and one-loop corrections to the matter power spectrum
Gabriel Hartmann, Emanuelly Silva, Rafael C. Nunes
We develop a perturbative framework for structure formation in a broad class of MOND-like theories characterized by a generalized nonlinear Poisson equation. We derive the modified…
Spin-1 Ultralight Dark Matter under Cosmological Scrutiny: Mass Constraints from CMB and Distance Probes
Guadalupe Ahumada Acuña, Tomas Ferreira Chase, Diana López Nacir +1
We present cosmological constraints on spin-1 ultralight dark matter, described by a vector field (VFDM) with mass , using Planck CMB data and geometrical probes from BA…
Non-linear Structure Formation in Planck+DESI Favoured Interacting Dark Energy Cosmologies
Yuejia Zhai, Carsten van de Bruck, Eleonora Di Valentino +2
Following our previous work constraining interacting dark energy (IDE) models, which showed their potential to alleviate the Hubble tension, in this work we investigate the non-lin…
Are Cosmological Data Excluding Sterile Neutrinos or Only the Fully Thermalized Limit?
Artur Ladeira, Rafael C. Nunes, Eleonora Di Valentino +1
We present a cosmological reassessment of light sterile-neutrino scenarios, examining whether current observations exclude sterile neutrinos as a class or primarily constrain the f…
Probing late-time deviations from CDM with a quadratic dark energy expansion
Sehjal Khandelwal, Abraão J. S. Capistrano, Suresh Kumar +1
We investigate the observational viability of a quadratic dark energy expansion (QDEE) model as a phenomenological extension of the standard cosmological framework.…
Probing dynamical embeddings in a five-dimensional spacetime in light of DESI BAO
Abraão J. S. Capistrano, Emanuelly Silva, Rafael C. Nunes +1
We here investigate the observational viability of Nash gravity as an alternative to the standard CDM cosmology. Based on Nash's embedding theorem, the model introduces orthogon…