Quark stars in f(R,T)gravity:mass-to-radius profiles and observational data  

作　　者：Ayan Banerjee Izzet Sakalli B.Dayanandan Anirudh Pradhan 

机构地区：[1]Astrophysics and Cosmology Research Unit,School of Mathematics,Statistics and Computer Science,University of KwaZulu-Natal,Private Bag X54001,Durban 4000,South Africa [2]Physics Department,Eastern Mediterranean University,Famagusta 99628,North Cyprus via Mersin 10,Turkey [3]Natural and Medical Sciences Research Centre,University of Nizwa,Nizwa 616,Sultanate of Oman [4]Centre for Cosmology,Astrophysics and Space Science,GLA University,Mathura-281406,Uttar Pradesh,India

出　　处：《Chinese Physics C》2025年第1期305-314,共10页中国物理C(英文版)

基　　金：support from the administration of the University of Nizwa;support of COST Actions CA21106 and CA22113;TUBITAK,SCOAP3,and ANKOS for their support.

摘　　要：This study explores the f(R,T)gravity theory,which introduces a coupling between matter and curvature,through the simplest linear functional form f(R,T)=R+2βT.We derive the modified Einstein field equations and conservation equations for this theory and then apply this framework to study the structural properties of quark stars(QSs)composed of interacting quark matter,considering perturbative QCD corrections and color superconductivity.By solving the modified Tolman-Oppenheimer-Volkoff equations,we investigate the mass-radius relation,stability criteria,and energy conditions of QSs.Our results indicate that the f(R,T)gravity significantly influences the properties of QSs,leading to deviations from General Relativity.The analysis is consistent with recent observational data,suggesting that the modified gravity framework could provide viable models for the study of compact stars.

关 键 词：quark stars f(R T)gravity mass-to-radius relation Tolman-Oppenheimer-Volkoff(TOV)equations interacting quark matter 

分 类 号：O57[理学—粒子物理与原子核物理]