@Article{BonillaKumaNune:2021:MeAnRe,
               author = "Bonilla, Alexander and Kumar, Suresh and Nunes, Rafael da Costa",
          affiliation = "{Universidade Federal de Juiz de Fora (UFJF)} and {National 
                         Institute of Technolog} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)}",
                title = "Measurements of H and reconstruction of the dark energy properties 
                         from a model-independent joint analysis",
              journal = "European Physical Journal C",
                 year = "2021",
               volume = "81",
               number = "2",
                pages = "e127",
                month = "Feb.",
             abstract = "Gaussian processes (GP) provide an elegant and model-independent 
                         method for extracting cosmological information from the 
                         observational data. In this work, we employ GP to perform a joint 
                         analysis by using the geometrical cosmological probes such as 
                         Supernova Type Ia (SN), Cosmic chronometers (CC), Baryon Acoustic 
                         Oscillations (BAO), and the H0LiCOW lenses sample to constrain the 
                         Hubble constant H, and reconstruct some properties of dark energy 
                         (DE), viz., the equation of state parameter w, the sound speed of 
                         DE perturbations cs2, and the ratio of DE density evolution X= 
                         \ρde/ \ρde , 0. From the joint analysis 
                         SN+CC+BAO+H0LiCOW, we find that H is constrained at 1.1% precision 
                         with H0=73.78±0.84kms-1Mpc-1, which is in agreement with SH0ES and 
                         H0LiCOW estimates, but in \∼ 6.2 \σ tension with the 
                         current CMB measurements of H. With regard to the DE parameters, 
                         we find cs2<0 at \∼ 2 \σ at high z, and the 
                         possibility of X to become negative for z> 1.5. We compare our 
                         results with the ones obtained in the literature, and discuss the 
                         consequences of our main results on the DE theoretical 
                         framework.",
                  doi = "10.1140/epjc/s10052-021-08925-z",
                  url = "http://dx.doi.org/10.1140/epjc/s10052-021-08925-z",
                 issn = "1434-6044",
             language = "en",
           targetfile = "Bonilla2021_Article_MeasurementsOfH0H0AndReconstru.pdf",
        urlaccessdate = "23 maio 2024"
}