Author:
Jiménez José C.,Pretel Juan M.Z.,Fraga Eduardo S.,Jorás Sergio E.,Reis Ribamar R.R.
Abstract
Abstract
We investigate the structure of quark stars in the framework of f(R)= R + αR
2 gravity using an equation of state for cold quark matter obtained from perturbative QCD, parametrized only by the renormalization scale. We show that a considerably large range of the free parameter α, within and even beyond the constraints previously reported in the literature, yield non-negligible modifications in the mass and radius of stars with large central mass densities. Their stability against baryon evaporation is analyzed through the behavior of the associated total binding energies which are slightly affected by the modified gravity term in the regime of high proper (baryon) masses.
Subject
Astronomy and Astrophysics
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献