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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Gravitational waves in f(R, T) and f(R, T-phi) theories of gravity

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Alves, M. E. S. [1] ; Moraes, P. H. R. S. [2] ; de Araujo, J. C. N. [3] ; Malheiro, M. [4]
Total Authors: 4
[1] UNESP Univ Estadual Paulista, Inst Ciencia & Tecnol, BR-12247016 Sao Jose Dos Campos, SP - Brazil
[2] ITA Inst Tecnol Aeronaut, Dept Fis, BR-12228900 Sao Jose Dos Campos, SP - Brazil
[3] INPE, Div Astrofis, BR-12227010 Sao Jose Dos Campos, SP - Brazil
[4] ITA, Dept Fis, BR-12228900 Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: Physical Review D; v. 94, n. 2 JUL 14 2016.
Web of Science Citations: 31

There is a host of alternative theories of gravitation in the literature, among them the f(R, T) and f(R, T-phi) theories recently elaborated by Harko et al. In these theories, R, T and T-phi are respectively the Ricci scalar and the traces of the energy-momentum tensors of matter and of a scalar field. There is already in the literature a series of studies of different forms of the f(R, T) and f(R, T-phi) functions as well as their cosmological consequences. However, there have been no studies so far related to gravitational waves. Here we consider such an issue, in particular, studying the putative extra polarization modes that can appear in the scope of such theories. Different functional forms of f(R, T-phi) are considered and the gravitational waveforms are found for the extra polarization modes in the cases in which they are present. (AU)

FAPESP's process: 15/08476-0 - Gravitational waves in f(R,T) theories: polarization states and astrophysical sources
Grantee:Pedro Henrique Ribeiro da Silva Moraes
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 13/26258-4 - Superdense matter in the universe
Grantee:Manuel Máximo Bastos Malheiro de Oliveira
Support type: Research Projects - Thematic Grants