Relativistic model for anisotropic compact stars in embedding class-Ⅰspacetime  

作　　者：Susmita Sarkar Moumita Sarkar Nayan Sarkar Farook Rahaman 

机构地区：[1]Department of Applied Science and Humanities,Haldia Institute of Technology,Haldia-721606,West Bengal,India [2]Department of Mathematics,Jadavpur University,Kolkata-700032,India [3]Department of Mathematics,Karimpur Pannadevi College,Nadia-741152,West Bengal,India

出　　处：《Communications in Theoretical Physics》2025年第1期143-157,共15页理论物理通讯(英文版)

摘　　要：In the present article,we introduce a completely new regular model for static,spherically symmetric celestial fluid spheres in embedding classⅠspacetime.In this regard,needfully,we propose a new suitable metric potential e^(λ(r))to generate the present model.The various analyses on energy density,pressure,anisotropic factor,mass,compactness parameter,redshift,and energy condition make sure the model is physically viable on the ground of model stars Vela X-1,Cen X-3,SMC X-4,and LMC X-4.The reported solutions also respect the equilibrium state by satisfying the Tolman-Oppenheimer-Volkoff(TOV)equation and ensure stability by satisfying the causality condition,condition on the adiabatic index,and Harrison-Zeldovich-Novikov condition.The generated M-R graph matches the ranges of masses and radii for the model compact stars.Additionally,this study provides estimates of the moment of inertia based on the I-M graph.

关 键 词：general relativity compact star ANISOTROPY Karmarkar condition 

分 类 号：O412.1[理学—理论物理] P14[理学—物理]