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@InProceedings{NunesAlveAraú:2019:PrGrWa,
               author = "Nunes, R. C. and Alves, M. E. S. and Ara{\'u}jo, Jos{\'e} Carlos 
                         Neves de",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade Estadual Paulista (UNESP)} and {Instituto Nacional 
                         de Pesquisas Espaciais (INPE)}",
                title = "Primordial gravitational waves in horndeski gravity",
                 year = "2019",
         organization = "International Conference on General Relativity and Gravitation",
             abstract = "We investigate the propagation of primordial gravitational waves 
                         within the context of the Horndeski theories, for this, we present 
                         a generalized transfer function quantifying the sub-horizon 
                         evolution of gravitational waves modes after they enter the 
                         horizon. We compare the theoretical prediction of the modified 
                         primordial gravitational waves spectral density with the aLIGO, 
                         Einstein telescope, LISA, gLISA and DECIGO sensitivity curves. 
                         Assuming reasonable and different values for the free parameters 
                         of the theory (in agreement with the event GW170817 and stability 
                         conditions of the theory), we note that the gravitational waves 
                         amplitude can vary significantly in comparison with general 
                         relativity. We find that in some cases the gravitational 
                         primordial spectrum can cross the sensitivity curves for DECIGO 
                         detector with the maximum frequency sensitivity to the theoretical 
                         predictions around 0.05 - 0.30 Hz. From our results, it is clear 
                         that the future generations of space based interferometers can 
                         bring new perspectives to probing modifications in general 
                         relativity.",
  conference-location = "Valencia, Spain",
      conference-year = "07-12 july",
             language = "en",
        urlaccessdate = "26 nov. 2020"
}


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