Gravastar in the framework of symmetric teleparallel gravity  

作　　者：Sneha Pradhan Sanjay Mandal P.K.Sahoo 

机构地区：[1]Department of Mathematics,Birla Institute of Technology and Science-Pilani,Hyderabad Campus,Hyderabad 500078,India

出　　处：《Chinese Physics C》2023年第5期221-231,共11页中国物理C（英文版）

基　　金：the National Board for Higher Mathematics (NBHM) under the Department of Atomic Energy (DAE) of the government of India for financial support to carry out the research project (02011/3/2022 NBHM(R.P.)/R&D Ⅱ/2152 Dt.14.02.2022)

摘　　要：We present a novel gravastar model based on the Mazur-Mottola(2004)method with an isotropic matter distribution in f(Q)gravity.The gravastar,which is a hypothesized substitute for a black hole,is built using the Mazur-Mottola mechanism.This approach allows us to define the gravastar as having three stages.The first one is an inner region with negative pressure;the next region is a thin shell that is made up of ultrarelativistic stiff fluid,and we studied the proper length,energy,entropy,and surface energy density for this region.Additionally,we demonstrated the possible stability of our suggested thin shell gravastar model through the graphical study of the surface redshift.The exterior Schwarzschild geometry describes the outer region of the gravastar.In the context of f(Q)gravity,we discovered analytical solutions for the interior of gravastars that are free of any type of singularity and the event horizon.

关 键 词：gravastar modified gravity non-metricity Kuchowicz metric potential 

分 类 号：P152[天文地球—天文学]