Charged stellar model with three layers  

作　　者：Avirt S.Lighuda Jefta M.Sunzu Sunil D.Maharaj Eunice W.Mureithi 

机构地区：[1]Department of Mathematics,University of Dar es Salaam,Tanzania [2]Department of Mathematics and Statistics,The University of Dodoma,Dodoma,Tanzania [3]Astrophysics Research Centre,School of Mathematics,Statistics and Computer Science,University of Kwa Zulu-Natal,Durban 4000,South Africa

出　　处：《Research in Astronomy and Astrophysics》2021年第12期421-432,共12页天文和天体物理学研究（英文版）

基　　金：the University of Kwa Zulu-Natal for financial support;University of Dar es Salaam;the Ministry of Education;Science and Technology-Tanzania(MOEST)for continuous support。

摘　　要：We establish new charged stellar models from the Einstein-Maxwell field equations for relativistic superdense objects outfitted with three layers.The core layer is described by a linear equation of state(EoS)describing quark matter,while the intermediate layer is described by a Bose-Einstein condensate EoS for Bose-Einstein condensate matter and the envelope layers satisfying a quadratic EoS for the neutron fluid.We have specified a new choice of the electric field and one of the metric potentials.It is interesting to note that the choice of electric field in this model can be set to vanish and we can regain earlier neutral models.Plots generated depict that the matter variables,gravitational potentials and other physical conditions are consistent with astrophysical studies.The interior layers and exterior boundary are also matched.

关 键 词：charged anisotropic stars:equations of state:layered INTERIOR 

分 类 号：P152[天文地球—天文学]