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Gravitational waves in f(R,T) theories: polarization states and astrophysical sources

Grant number: 15/08476-0
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): July 01, 2015
Effective date (End): January 10, 2020
Field of knowledge:Physical Sciences and Mathematics - Astronomy
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal researcher:Manuel Máximo Bastos Malheiro de Oliveira
Grantee:Pedro Henrique Ribeiro da Silva Moraes
Home Institution: Divisão de Ciências Fundamentais (IEF). Instituto Tecnológico de Aeronáutica (ITA). Ministério da Defesa (Brasil). São José dos Campos , SP, Brazil
Associated research grant:13/26258-4 - Superdense matter in the universe, AP.TEM
Associated scholarship(s):18/20689-7 - Gauss-Bonnet Stars, BE.EP.PD

Abstract

Although great efforts in the study of the composition and internal structure of compact stars have been made, the absolute ground state of matter still is an open question. The analysis of matter at high densities in the universe has as one of its fronts the characterization of gravitational waves emitted by binary systems with compact objects. The objective of this work is to characterize the polarization states of gravitational waves in f(R,T) Theory, in which the gravitational part of the action depends on a generic function of R, the Ricci scalar, and T, the trace of the energy-momentum tensor. Such a characterization, apart from contributing to the study of matter at high densities, can be corroborated by experiments like Advanced LIGO, which will soon come into operation. Furthermore, still in the scope of f(R,T) Theories, we propose to obtain the Tolman-Oppenheimer-Volkoff Equations, as well as their solutions, in such a way we can identify relevant physical quantities in the study of superdense matter in the universe. (AU)

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Scientific publications (35)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CORREA, R. A. C.; MORAES, P. H. R. S.; DE SOUZA DUTRA, A.; SANTOS, J. R. L.; DE PAULA, W.. Cosmological scenarios from multiquintessence. EUROPEAN PHYSICAL JOURNAL C, v. 78, n. 11, . (17/26646-5, 16/03276-5, 15/08476-0)
MORAES, P. H. R. S.; CORREA, R. A. S.; LOBATO, R. V.. Analytical general solutions for static wormholes in f (R, T) gravity. Journal of Cosmology and Astroparticle Physics, n. 7, . (16/03276-5, 15/08476-0)
SAHOO, P. K.; MORAES, P. H. R. S.; SAHOO, PARBATI. Wormholes in R-2-gravity within the f (R, T) formalism. EUROPEAN PHYSICAL JOURNAL C, v. 78, n. 1, . (15/08476-0)
MORAES, P. H. R. S.; SAHOO, P. K.. Nonexotic matter wormholes in a trace of the energy-momentum tensor squared gravity. Physical Review D, v. 97, n. 2, . (15/08476-0)
MORAES, P. H. R. S.. Cosmic acceleration from varying masses in five dimensions. INTERNATIONAL JOURNAL OF MODERN PHYSICS D, v. 25, n. 1, . (15/08476-0)
ALVES, M. E. S.; MORAES, P. H. R. S.; DE ARAUJO, J. C. N.; MALHEIRO, M.. Gravitational waves in f(R, T) and f(R, T-phi) theories of gravity. Physical Review D, v. 94, n. 2, . (13/26258-4, 15/08476-0)
MORAES, P. H. R. S.; SANTOS, J. R. L.. A complete cosmological scenario from f(R, T-phi) gravity theory. EUROPEAN PHYSICAL JOURNAL C, v. 76, n. 2, . (15/08476-0)
MORAES, P. H. R. S.; CORREA, R. A. C.. Braneworld cosmology in f (R, T) gravity. ASTROPHYSICS AND SPACE SCIENCE, v. 361, n. 3, . (15/08476-0)
CHINAGLIA, M.; CRUZ, W. T.; CORREA, R. A. C.; DE PAULA, W.; MORAES, P. H. R. S.. Configurational entropy as a tool to select a physical thick brane model. Physics Letters B, v. 779, p. 16-23, . (15/08476-0, 16/03276-5)
MORAES, P. H. R. S.; SAHOO, P. K.. The simplest non-minimal matter-geometry coupling in the f (R, T) cosmology. EUROPEAN PHYSICAL JOURNAL C, v. 77, n. 7, . (15/08476-0)
MORAES, P. H. R. S.; CORREA, R. A. C.. The Importance of Scalar Fields as Extradimensional Metric Components in Kaluza-Klein Models. ADVANCES IN ASTRONOMY, v. 2019, . (17/26646-5, 16/03276-5, 15/08476-0)
CARVALHO, G. A.; LOBATO, R. V.; MORAES, P. H. R. S.; ARBANIL, JOSE D. V.; OTONIEL, E.; MARINHO, JR., R. M.; MALHEIRO, M.. Stellar equilibrium configurations of white dwarfs in the f (R, T) gravity. EUROPEAN PHYSICAL JOURNAL C, v. 77, n. 12, . (13/26258-4, 15/08476-0)
COUCEIRO CORREA, RAFAEL AUGUSTO; DANTAS, DAVI MONTEIRO; RIBEIRO DA SILVA MORAES, PEDRO HENRIQUE; DUTRA, ALVARO DE SOUZA; SANTOS DE ALMEIDA, CARLOS ALBERTO. Refinements of the Weyl Pure Geometrical Thick Branes From Information-Entropic Measure. Annalen der Physik, v. 530, n. 7, . (16/03276-5, 15/08476-0)
MORAES, P. H. R. S.; SAHOO, P. K.; RIBEIRO, G.; CORREA, R. A. C.. A Cosmological Scenario from the Starobinsky Model within the f(R,T) Formalism. ADVANCES IN ASTRONOMY, v. 2019, . (17/26646-5, 15/08476-0, 16/03276-5)
LOBATO, RONALDO V.; CARVALHO, G. A.; MARTINS, A. G.; MORAES, P. H. R. S.. Energy nonconservation as a link between f(R,T) gravity and noncommutative quantum theory. EUROPEAN PHYSICAL JOURNAL PLUS, v. 134, n. 4, . (15/08476-0)
SAHOO, P. K.; MORAES, P. H. R. S.; SAHOO, PARBATI; RIBEIRO, G.. Phantom fluid supporting traversable wormholes in alternative gravity with extra material terms. INTERNATIONAL JOURNAL OF MODERN PHYSICS D, v. 27, n. 16, . (15/08476-0)
HARKO, TIBERIU; MORAES, PEDRO H. R. S.. Comment on ``Reexamining f (R, T) gravity{''}. Physical Review D, v. 101, n. 10, . (13/26258-4, 15/08476-0)
CARVALHO, G. A.; MORAES, P. H. R. S.; DOS SANTOS JR, I, S.; GONCALVES, B. S.; MALHEIRO, M.. Hydrostatic equilibrium configurations of neutron stars in a non-minimal geometry-matter coupling theory of gravity. EUROPEAN PHYSICAL JOURNAL C, v. 80, n. 5, . (15/08476-0, 18/20689-7, 13/26258-4)
MORAES, P. H. R. S.; SAHOO, P. K.. Wormholes in exponential f(R, T) gravity. EUROPEAN PHYSICAL JOURNAL C, v. 79, n. 8, . (15/08476-0, 18/20689-7)
SAHOO, PARBATI; MORAES, P. H. R. S.; LAPOLA, MARCELO M.; SAHOO, P. K.. Traversable wormholes in the traceless f(R,T) gravity. INTERNATIONAL JOURNAL OF MODERN PHYSICS D, v. 30, n. 13, . (15/08476-0)
LAPOLA, M. M.; MORAES, P. H. R. S.; DE PAULA, W.; JESUS, J. F.; VALENTIM, R.; MALHEIRO, M.. Induced equation of state for the universe epochs constrained by the hubble parameter. CHINESE JOURNAL OF PHYSICS, v. 72, p. 159-175, . (16/09831-0, 15/08476-0, 18/20689-7, 17/05859-0)
MORAES, P. H. R. S.; SAHOO, P. K.. Modeling wormholes in f (R,T) gravity. Physical Review D, v. 96, n. 4, . (15/08476-0)
CORREA, R. A. C.; MORAES, P. H. R. S.; DE SOUZA DUTRA, A.; DE PAULA, W.; FREDERICO, T.. Configurational entropy as a constraint for Gauss-Bonnet braneworld models. Physical Review D, v. 94, n. 8, . (15/08476-0)
MOMENI, D.; MORAES, P. H. R. S.; MYRZAKULOV, R.. Generalized second law of thermodynamics in f (R, T) theory of gravity. ASTROPHYSICS AND SPACE SCIENCE, v. 361, n. 7, . (15/08476-0)
MORAES, P. H. R. S.; ARBANIL, JOSE D. V.; MALHEIRO, M.. Stellar equilibrium configurations of compact stars in f (R, T) theory of gravity. Journal of Cosmology and Astroparticle Physics, n. 6, . (15/08476-0)
SANTOS, J. R. L.; MORAES, P. H. R. S.. Cosmology from a running vacuum model driven by a scalar field. INTERNATIONAL JOURNAL OF GEOMETRIC METHODS IN MODERN PHYSICS, v. 17, n. 1, . (15/08476-0)
SAHOO, P. K.; MORAES, P. H. R. S.; SAHOO, PARBATI; BISHI, BINAYA K.. f (R, T) = f (R) plus lambda T gravity models as alternatives to cosmic acceleration. EUROPEAN PHYSICAL JOURNAL C, v. 78, n. 9, . (15/08476-0)
MORAES, P. H. R. S.; DE PAULA, W.; CORREA, R. A. C.. Charged wormholes in f (R, T)-extended theory of gravity. INTERNATIONAL JOURNAL OF MODERN PHYSICS D, v. 28, n. 8, . (17/26646-5, 15/08476-0, 16/03276-5)
DEB, DEBABRATA; KETOV, SERGEI V.; MAURYA, S. K.; KHLOPOV, MAXIM; MORAES, P. H. R. S.; RAY, SAIBAL. Exploring physical features of anisotropic strange stars beyond standard maximum mass limit in f (R, T) gravity. Monthly Notices of the Royal Astronomical Society, v. 485, n. 4, p. 5652-5665, . (15/08476-0)
MORAES, P. H. R. S.; CORREA, R. A. C.; RIBEIRO, G.. Evading the non-continuity equation in the f (R, T) cosmology. EUROPEAN PHYSICAL JOURNAL C, v. 78, n. 3, . (15/08476-0)
SANTOS, J. R. L.; MORAES, P. H. R. S.; FERREIRA, D. A.; VILAR NETA, D. C.. Building analytical three-field cosmological models. EUROPEAN PHYSICAL JOURNAL C, v. 78, n. 2, . (15/08476-0)
MORAES, P. H. R. S.; SAHOO, P. K.; TAORI, BARKHA; SAHOO, PARBATI. Phantom energy-dominated universe as a transient stage in f(R) cosmology. INTERNATIONAL JOURNAL OF MODERN PHYSICS D, v. 28, n. 10, . (15/08476-0)
MORAES, P. H. R. S.. The trace of the trace of the energy-momentum tensor-dependent Einstein's field equations. EUROPEAN PHYSICAL JOURNAL C, v. 79, n. 8, . (13/26258-4, 15/08476-0, 18/20689-7)
DOS SANTOS, S. I.; CARVALHO, G. A.; MORAES, P. H. R. S.; LENZI, C. H.; MALHEIRO, M.. A conservative energy-momentum tensor in the f(R,T) gravity and its implications for the phenomenology of neutron stars. EUROPEAN PHYSICAL JOURNAL PLUS, v. 134, n. 8, . (15/08476-0, 13/26258-4, 18/20689-7)

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