Strange Quark Stars and Condensate Dark Stars in Bumblebee Gravity
General Relativity and Quantum Cosmology
2025-05-15 v2 Solar and Stellar Astrophysics
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 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.
Keywords
Cite
@article{arxiv.2409.05801,
title = {Strange Quark Stars and Condensate Dark Stars in Bumblebee Gravity},
author = {Grigoris Panotopoulos and Ali Övgün},
journal= {arXiv preprint arXiv:2409.05801},
year = {2025}
}
Comments
Revised version, to appear in NPB