Browsing by Author "Nunes, Rafael da Costa"

Now showing items 1-6 of 6

    • A consistent view of interacting dark energy from multiple CMB probes 

      Zhai, Yuejia; Giarè, William; Bruck, Carsten van de; Di Valentino, Eleonora; Mena Requejo, Olga; Nunes, Rafael da Costa (2023) [Journal article]
      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 independent experiments: the most recent data ...

    • Forecasting constraints on deviations from general relativity in f ( Q ) gravity with standard sirens 

      D'Agostino, Rocco; Nunes, Rafael da Costa (2022) [Journal article]
      In this work, we explore how modified gravity theories based on the nonmetricity scalar, known as fðQÞ gravity, affect the propagation of gravitational waves from inspiraling of binary systems. We discuss forecast constraints ...

    • Inferring S8(z) and γ (z) with cosmic growth rate measurements using machine learning 

      Avila, Felipe; Bernui, Armando; Bonilla, Alexander; Nunes, Rafael da Costa (2022) [Journal article]
      Measurements of the cosmological parameter S8 provided by cosmic microwave background and large scale structure data reveal some tension between them, suggesting that the clustering features of matter in these early and ...

    • Late-time interacting cosmologies and the Hubble constant tension 

      Gariazzo, Stefano; Di Valentino, Eleonora; Mena Requejo, Olga; Nunes, Rafael da Costa (2022) [Journal article]
      In this manuscript we reassess the potential of interacting dark matter–dark energy models in solving the Hubble constant tension. These models have been proposed but also questioned as possible solutions to the H0 problem. ...

    • New cosmological constraints on f(T) gravity in light of full Planck-CMB and type Ia supernovae data 

      Kumar, Suresh; Nunes, Rafael da Costa; Yadav, Priya (2023) [Journal article]
      We investigate two new observational perspectives in the context of torsional gravitational modification of general relativity, i.e., the f(T) gravity: (i) We use Pantheon data of type Ia supernovae motivated by a time ...

    • New tests of dark sector interactions from the full-shape galaxy power spectrum 

      Nunes, Rafael da Costa; Vagnozzi, Sunny; Kumar, Suresh; Di Valentino, Eleonora; Mena Requejo, Olga (2022) [Journal article]
      We explore the role of redshift-space galaxy clustering data in constraining nongravitational interactions between dark energy (DE) and dark matter (DM), for which state-of-the-art limits have so far been obtained from ...