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@Article{NunesPanSari:2018:NeObCo,
               author = "Nunes, Rafael da Costa and Pan, Supriya and Saridakis, Emmanuel 
                         N.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Presidency 
                         University} and {National Technical University of Athens}",
                title = "New observational constraints on fT gravity through 
                         gravitational-wave astronomy",
              journal = "Physical Review D",
                 year = "2018",
               volume = "98",
               number = "10",
                pages = "104055",
                month = "Nov.",
             abstract = "We investigate the new observational constraints on f(T) gravity 
                         that arise from the effects of primordial gravitational waves 
                         (GWs) on the cosmic microwave background (CMB) anisotropies and 
                         the BB spectrum. We first show that on the GWs propagation in f(T) 
                         gravity we obtain only an amplitude modification and not a phase 
                         one, comparing to the case of general relativity in the background 
                         of Lambda CDM cosmology. Concerning primordial GWs we find that 
                         the more the model departs from general relativity the larger is 
                         the GW amplitude decay, and thus a possible future detection would 
                         bring the viable f(T) gravity models five orders of magnitude 
                         closer to Lambda CDM cosmology comparing to standard cosmological 
                         constraints. Additionally, we use the CLASS code and both data 
                         from the Planck probe, as well as forecasts from the near-future 
                         CORE collaboration, and we show that possible nontrivial 
                         constraints on the tensor-to-scalar ratio would offer a clear 
                         signature of f(T) gravity. Finally, we discuss on the possibility 
                         to use the properties of the GWs that arise from neutron stars 
                         mergers in order to extract additional constrains on the theory.",
                  doi = "10.1103/PhysRevD.98.104055",
                  url = "http://dx.doi.org/10.1103/PhysRevD.98.104055",
                 issn = "1550-2368 and 1550-7998",
             language = "en",
           targetfile = "nunes_new.pdf",
        urlaccessdate = "28 nov. 2020"
}


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