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- W2890586784 abstract "In this paper, we investigate the propagation of axial gravitational waves in the background of the flat FRW universe in $f(R,T)$ theory. The field equations are obtained for unperturbed as well as axially perturbed FRW metric. These field equations are solved simultaneously to obtain the unknown perturbation parameters. We find that the assumed perturbations can affect matter as well as four-velocity. Moreover, ignoring the material perturbations we explicitly obtain an expression for four-velocity. It is concluded that axial gravitational waves in the curvature-matter coupling background can produce cosmological rotation or have memory effect if the wave profile has a discontinuity at the wavefront." @default.
- W2890586784 created "2018-09-27" @default.
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- W2890586784 date "2018-09-01" @default.
- W2890586784 modified "2023-10-11" @default.
- W2890586784 title "Curvature-matter coupling effects on axial gravitational waves" @default.
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- W2890586784 doi "https://doi.org/10.1140/epjc/s10052-018-6201-6" @default.
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