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arxiv: 1109.2096 · v2 · pith:AHYJPU3Gnew · submitted 2011-09-09 · 🌌 astro-ph.CO · gr-qc

Note on the Evolution of the Gravitational Potential in Rastall Scalar Field Theories

J. C. Fabris , M. Hamani Daouda , O. F. Piattella This is my paper
classification 🌌 astro-ph.CO gr-qc
keywords componentevolutionfieldgammagravitationalpotentialrastallscalar
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We investigate the evolution of the gravitational potential in Rastall scalar field theories. In a single component model a consistent perturbation theory, formulated in the newtonian gauge, is possible only for $\gamma = 1$, which is the General Relativity limit. On the other hand, the addition of another canonical fluid component allows also to consider the case $\gamma \neq 1$.

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