A view of compact configurations from the R+γe^xT scenario  

作　　者：Aisha Siddiqa 

机构地区：[1]Department of Mathematics,Virtual University of Pakistan,54-Lawrence Road,Lahore,Pakistan

出　　处：《Communications in Theoretical Physics》2020年第3期38-45,共8页理论物理通讯（英文版）

摘　　要：This paper presents a picture of compact structures for the f(R,T)model of the form R+γe^χT,withγandχbeing parameters.The poly tropic equation of state and the MIT bag model reflect the pressure density relation for these compact objects.For this purpose,a system of two differential equations involving pressure as well as the mass of the stellar structure is obtained from field equations and the Tolman-Oppenheimer-Volkoff(TOV)equation.The numerical solution of this system gives a graphical description of various characteristics of these compact systems.To examine the viability and stability of assumed configurations,the energy conditions,causality relation and adiabatic index are discussed for the presumed scenario.This paper presents a picture of compact structures for the f （R,T） model of the form R+γeχT,withγandχbeing parameters.The poly tropic equation of state and the MIT bag model reflect the pressure density relation for these compact objects.For this purpose,a system of two differential equations involving pressure as well as the mass of the stellar structure is obtained from field equations and the Tolman-Oppenheimer-Volkoff （TOV） equation.The numerical solution of this system gives a graphical description of various characteristics of these compact systems.To examine the viability and stability of assumed configurations,the energy conditions,causality relation and adiabatic index are discussed for the presumed scenario.

关 键 词：f(R T)gravity NEUTRON and QUARK stars equation of state 

分 类 号：O175[理学—数学] P15[理学—基础数学]