{"title":"Analysis of anisotropic quark stellar objects in modified gravity","authors":"M. Sharif, K. Hassan","doi":"10.1007/s10509-024-04379-3","DOIUrl":null,"url":null,"abstract":"<div><p>In this paper, we compute the structural composition of a static spherically symmetric regime configured with anisotropic distribution in the context of <span>\\(f(G,T)\\)</span> gravity. To accomplish this, we adopt the model <span>\\(f(G,T)=G^{2}+\\varpi T\\)</span>, where <span>\\(\\varpi \\)</span> denotes the coupling constant. We establish the modified field equations and utilize the MIT bag model equation of state to determine the graphical analysis of Her X-I, LMC X-4, 4U1820-30, and PSR J1614-2230 compact bodies. The Tolman IV solution is employed to study the above-mentioned structures. We check the graphical behavior of energy density, pressure components, anisotropy, and energy conditions by keeping the coupling constant fixed. We also study the behavior of mass, compactness, and redshift factors. Finally, we discuss the stability of the resulting solution through two different criteria. It is found that all the star candidates portray viable and stable behavior, except PSR J1614-2230, which is viable but not stable.</p></div>","PeriodicalId":8644,"journal":{"name":"Astrophysics and Space Science","volume":"369 11","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Astrophysics and Space Science","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1007/s10509-024-04379-3","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, we compute the structural composition of a static spherically symmetric regime configured with anisotropic distribution in the context of \(f(G,T)\) gravity. To accomplish this, we adopt the model \(f(G,T)=G^{2}+\varpi T\), where \(\varpi \) denotes the coupling constant. We establish the modified field equations and utilize the MIT bag model equation of state to determine the graphical analysis of Her X-I, LMC X-4, 4U1820-30, and PSR J1614-2230 compact bodies. The Tolman IV solution is employed to study the above-mentioned structures. We check the graphical behavior of energy density, pressure components, anisotropy, and energy conditions by keeping the coupling constant fixed. We also study the behavior of mass, compactness, and redshift factors. Finally, we discuss the stability of the resulting solution through two different criteria. It is found that all the star candidates portray viable and stable behavior, except PSR J1614-2230, which is viable but not stable.
期刊介绍:
Astrophysics and Space Science publishes original contributions and invited reviews covering the entire range of astronomy, astrophysics, astrophysical cosmology, planetary and space science and the astrophysical aspects of astrobiology. This includes both observational and theoretical research, the techniques of astronomical instrumentation and data analysis and astronomical space instrumentation. We particularly welcome papers in the general fields of high-energy astrophysics, astrophysical and astrochemical studies of the interstellar medium including star formation, planetary astrophysics, the formation and evolution of galaxies and the evolution of large scale structure in the Universe. Papers in mathematical physics or in general relativity which do not establish clear astrophysical applications will no longer be considered.
The journal also publishes topically selected special issues in research fields of particular scientific interest. These consist of both invited reviews and original research papers. Conference proceedings will not be considered. All papers published in the journal are subject to thorough and strict peer-reviewing.
Astrophysics and Space Science features short publication times after acceptance and colour printing free of charge.