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arXiv · 2409.05801

Strange Quark Stars and Condensate Dark Stars in Bumblebee Gravity

Grigoris Panotopoulos·Ali Övgün
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Abstract

In this paper, we investigate the properties of relativistic stars made of isotropic matter within the framework of the minimal Standard Model Extension, where a Bumblebee field (BF) coupled to spacetime induces spontaneous Lorentz symmetry breaking. We adopt analytic equations-of-state describing either condensate dark stars or strange quark stars. We solve the structure equations numerically, and we compute the mass-to-radius relationships. The influence of the Bumblebee parameter $\mathbf{l}$ is examined in detail, and an upper bound is obtained using the massive pulsar (PSR) J0740+6620 and the strangely light High Energy Stereoscopic System (HESS) J1731-347 compact object.

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Grigoris Panotopoulos, Ali Övgün. 2024-09-09. Strange Quark Stars and Condensate Dark Stars in Bumblebee Gravity. https://doi.org/10.1016/j.nuclphysb.2025.116956

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