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- W974345349 abstract "A general treatment of vorticity-free, perfect fluid perturbations of Kantowski-Sachs models with a positive cosmological constant are considered within the framework of the 1+1+2 covariant decomposition of spacetime. The dynamics is encompassed in six evolution equations for six harmonic coefficients, describing gravito-magnetic, kinematic and matter perturbations, while a set of algebraic expressions determine the rest of the variables. The six equations further decouple into a set of four equations sourced by the perfect fluid, representing forced oscillations and two uncoupled damped oscillator equations. The two gravitational degrees of freedom are represented by pairs of gravito-magnetic perturbations. In contrast with the Friedmann case one of them is coupled to the matter density perturbations, becoming decoupled only in the geometrical optics limit. In this approximation, the even and odd tensorial perturbations of the Weyl tensor evolve as gravitational waves on the anisotropic Kantowski-Sachs background, while the modes describing the shear and the matter density gradient are out of phase dephased by $pi /2$ and share the same speed of sound." @default.
- W974345349 created "2016-06-24" @default.
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- W974345349 date "2015-11-25" @default.
- W974345349 modified "2023-10-12" @default.
- W974345349 title "Gravitational, shear and matter waves in Kantowski-Sachs cosmologies" @default.
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- W974345349 cites W1988281968 @default.
- W974345349 cites W1990839887 @default.
- W974345349 cites W1991441915 @default.
- W974345349 cites W1992137638 @default.
- W974345349 cites W1995311000 @default.
- W974345349 cites W1995523822 @default.
- W974345349 cites W1998343902 @default.
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- W974345349 cites W2009441000 @default.
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- W974345349 cites W2011840039 @default.
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- W974345349 cites W2026394947 @default.
- W974345349 cites W2029403139 @default.
- W974345349 cites W2035231452 @default.
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- W974345349 doi "https://doi.org/10.1088/1475-7516/2015/11/042" @default.
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