Double-layered anisotropic stellar model of embedding class I with gaseous envelope

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dc.contributor.authorMathias, Amos Vincent
dc.contributor.authorMkenyeleye, Jason Maombi
dc.contributor.authorSunzu, Jefta M.
dc.date.accessioned2024-08-16T09:18:07Z
dc.date.available2024-08-16T09:18:07Z
dc.date.issued2023
dc.descriptionAbstract. Full-text available at https://doi.org/10.1016/j.newast.2024.102216
dc.description.abstractThe current paper presents a double-layered neutral anisotropic stellar model in general relativistic setting. The model is developed by using Einstein field equations and class I embedding condition. We consider the core with quark matter obeying linear equation of state and envelope layer with gaseous matter admitting Chaplygin gas equation of state. The interior and exterior metric coefficients match smoothly at the interface of core and envelope layers and at the stellar surface. The profiles for matter variables, stability and energy conditions show acceptable trend for physical stellar models. In this model, stellar masses and radii consistent with compact stars HerX-1, 4U1538-52, SAXJ1808.4-3658, CenX-3 and SMCX-1 are generated. We note that studies of multi-layered stars with gaseous envelope and embedding class I condition are missing in investigations conducted in the past.
dc.identifier.citationMathias, A. V., Mkenyeleye, J. M., & Sunzu, J. M. (2024). Double-layered anisotropic stellar model of embedding class I with gaseous envelope. New Astronomy, 110, 102216.
dc.identifier.doi10.2139/ssrn.4663632
dc.identifier.otherDOI: https://doi.org/10.1016/j.newast.2024.102216
dc.identifier.urihttps://repository.udom.ac.tz/handle/20.500.12661/4596
dc.language.isoen
dc.publisherElsevier BV
dc.subjectDouble-layered star
dc.subjectEinstein field equations
dc.subjectClass I embedding condition
dc.subjectAnisotropy
dc.subjectStellar model
dc.titleDouble-layered anisotropic stellar model of embedding class I with gaseous envelope
dc.typeArticle
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