A generalised double layered model with polytropic and quadratic equations of state

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dc.contributor.authorSunzu, Jefta M.
dc.contributor.authorLighuda, Avirt S.
dc.date.accessioned2023-05-23T08:16:10Z
dc.date.available2023-05-23T08:16:10Z
dc.date.issued2023
dc.descriptionAbstract. Full text article available at https://doi.org/10.1016/j.newast.2022.101977en_US
dc.description.abstractThis study generates a new exact model for a massive stellar spheres by utilising the Einstein–Maxwell field equations. The model has two interior regions with distinct equations of state (EoS): the polytropic EoS at the core region, and quadratic EoS at the envelope region. Variation of the physical features in the interior of star affirms that the matter variables, gravitational potentials and other physical quantities are consistent with massive stellar bodies. Interestingly, our model can regain solutions of the two-layered model generated by Mardan, Noureen and Khalid. Matching of the layers in junctions is done with help of the Reissner–Nordstrom exterior spacetime. Using our model, stellar masses, and radii consistent with observations and well known stars are generated.en_US
dc.identifier.citationSunzu, J. M., & Lighuda, A. S. (2023). A generalised double layered model with polytropic and quadratic equations of state. New Astronomy, (100), 101-977.en_US
dc.identifier.otherDOI:https://doi.org/10.1016/j.newast.2022.101977
dc.identifier.urihttp://hdl.handle.net/20.500.12661/3826
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectAstrophysicsen_US
dc.subjectAstronomyen_US
dc.subjectEinstein–Maxwell field equationsen_US
dc.subjectMassive stellar spheresen_US
dc.subjectQuadratic equationsen_US
dc.subjectPolytropicen_US
dc.subjectStellar spheresen_US
dc.subjectEquations of stateen_US
dc.subjectEoSen_US
dc.titleA generalised double layered model with polytropic and quadratic equations of stateen_US
dc.typeArticleen_US
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