Strange quark stars and condensate dark stars in Bumblebee gravity

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dc.contributor.authorPanotopoulos, Grigoris
dc.contributor.authorOvgun, Ali
dc.date.accessioned2026-02-06T18:40:15Z
dc.date.issued2025
dc.departmentDoğu Akdeniz Üniversitesi
dc.description.abstractIn 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 I 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.
dc.description.sponsorshipCOST (European Cooperation in Science and Technology); TUBITAK; SCOAP3, Switzerland
dc.description.sponsorshipWe wish to thank the anonymous reviewers for useful comments and suggestions. A.O. would like to acknowledge the contribution of the COST Action CA21106-COSMIC WISPers in the Dark Universe: Theory, astrophysics and experiments (CosmicWISPers) , the COST Action CA21136-Addressing observational tensions in cosmology with systematics and fundamental physics (CosmoVerse) , the COST Action CA22113-Fundamental challenges in theoretical physics (THEORY-CHALLENGES) , the COST Action CA23130-Bridging high and low energies in search of quantum gravity (BridgeQG) and the COST Action CA23115-Relativistic QuantumInformation (RQI) funded by COST (European Cooperation in Science and Technology) . We also thank EMU, TUBITAK, ULAKBIM, Turkiye and SCOAP3, Switzerland for their support.
dc.identifier.doi10.1016/j.nuclphysb.2025.116956
dc.identifier.issn0550-3213
dc.identifier.issn1873-1562
dc.identifier.orcid0000-0002-9889-342X
dc.identifier.scopus2-s2.0-105005017417
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.nuclphysb.2025.116956
dc.identifier.urihttps://hdl.handle.net/11129/13227
dc.identifier.volume1017
dc.identifier.wosWOS:001493911500001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofNuclear Physics B
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20260204
dc.subjectModified gravity
dc.subjectRelativistic stars
dc.subjectStellar composition
dc.subjectLorentz symmetry breaking
dc.subjectBumblebee gravity
dc.titleStrange quark stars and condensate dark stars in Bumblebee gravity
dc.typeArticle

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