2021-02-232020-07-15VILHENA, Silas Guida. Ondas gravitacionais no modelo de Starobinsky de ordem superior. 2020. 132 f. Dissertação (Mestrado em Física) - Universidade Federal de Alfenas, Poços de Caldas, 2020.https://repositorio.unifal-mg.edu.br/handle/123456789/1742This work proposes the study of gravitational waves in the higher order Starobinsky model. Starting from higher order Starobinsky action, it is possible to deduce the field equations for this gravitational theory. Through the weak field approximation, linearized equations of sixth order derivatives are constructed. Scalar fields are introduced with the proposal to reduce the order of the differential equations and lead us to three second-order differential equations. One tensor equation with known solution; two equations with dependency of scalar fields, which are solved by Green funciton. The solution of these equations lead us to the characterization of gravitational waves in our modified gravity model.application/pdfAcesso Abertohttp://creativecommons.org/licenses/by-nc-nd/4.0/Física.Relatividade (Física).Ondas gravitacionais.FISICA::FISICA DAS PARTICULAS ELEMENTARES E CAMPOSDissertaçãoCuzinatto, Rodrigo Rocha