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Constraints on the braneworld from compact stars
Publication . Felipe, Ricardo Gonzalez; Paret, D. Manreza; Martinez, A. Perez
According to the braneworld idea, ordinary matter is confined on a three-dimensional space (brane) that is embedded in a higher-dimensional space-time where gravity propagates. In this work, after reviewing the limits coming from general relativity, finiteness of pressure and causality on the brane, we derive observational constraints on the braneworld parameters from the existence of stable compact stars. The analysis is carried out by solving numerically the brane-modified Tolman–Oppenheimer–Volkoff equations, using different representative equations of state to describe matter in the star interior. The cases of normal dense matter, pure quark matter and hybrid matter are considered.

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Fundação para a Ciência e a Tecnologia

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3599-PPCDTI

Número da atribuição

CERN/FP/123580/2011

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