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Panotopoulos, Grigoris; Rincón, Ángel, E-mail: grigorios.panotopoulos@tecnico.ulisboa.pt, E-mail: angel.rincon@pucv.cl2019
AbstractAbstract
[en] We study relativistic non-rotating stars in the framework of Lovelock gravity. In particular, we consider the Gauss-Bonnet term in a five-dimensional spacetime, and we investigate the impact of the Gauss-Bonnet parameter on properties of the stars, both isotropic and anisotropic. For matter inside the star, we assume a relativistic gas of de-confined massless quarks. We integrate the modified Tolman-Oppenheimer-Volkoff equations numerically, and we obtain the mass-to-radius profile, the compactness of the star as well as the gravitational red-shift for several values of the Gauss-Bonnet parameter. The maximum star mass and radius are also reported.
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Copyright (c) 2019 EDP Sciences, Societa Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature; Article Copyright (c) 2019 Societa Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature; Country of input: International Atomic Energy Agency (IAEA)
Record Type
Journal Article
Journal
European Physical Journal Plus; ISSN 2190-5444;
; v. 134(9); p. 1-9

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