论文标题
$ f（q）$理论中的buchdahl夸克星星
Buchdahl quark stars within $f(Q)$ theory
论文作者
论文摘要
在本文中，作者在线性$ f（q）= aq+b $和非线性$ f（q）= q+aq+aq^b $改良的对称的对称的传递重点中研究了buchdahl对称性（非单独和物理上可行的度量电位）的奇怪恒星。为了获得正确形式的buchdahl度量系数，它们将内部奇怪的星空时空与外部Schwarzschild真空时空匹配。作为一个奇怪的星星候选人，PSRJ1416-2230已使用质量$ m = 169m_ \ odot $，而半径$ r = 9.69r_ \ odot $。对于线性和非线性$ f（q）$重力，他们探测了无效，占主导地位和强的能量条件以及状态的径向，切向切方程（EOS），完美流体的能量能量电量张量元件的梯度，tolman-oppenheimer-oppenheimer-volkoff equilibrifium equilibrium equilibrium equilibrium equilibrium均衡，相对性的适用性污染和无动度和无动度和无动度均红色的状态。发现线性和非线性$ f（q）$重力在物理上可行的行为，尊重能量和因果关系条件上具有EOS的范围$ 0 \leqΩ\ leq1 $，而表面红移不超过2。
In the present paper, authors study the strange stars with the MIT Bag EoS admitting Buchdahl symmetry (non-singular and physically viable metric potential) in the both linear $f(Q)=aQ+b$ and non-linear $f(Q)=Q+aQ^b$ forms of modified symmetric teleparallel gravitation. In order to obtain the correct form of Buchdahl metric coefficients, they matched interior strange star spacetime with the exterior Schwarzschild vacuum spacetime. As a strange star candidate, PSRJ1416-2230 has been used with mass $M=1.69M_\odot$ and radius $R=9.69R_\odot$. For either linear and non-linear $f(Q)$ gravities, they probed Null, Dominant and Strong Energy Conditions as well as the radial, tangential Equation of State (EoS), gradients of the perfect fluid energy-momentum tensor elements, Tolman-Oppenheimer-Volkoff equilibrium condition, relativistic adiabatic index and causality conditions, surface redshift. It was found that strange stars in the linear and non-linear $f(Q)$ gravity show physically viable behavior, respect energy and causality conditions, has EoS in the bounds $0\leqω\leq1$ and surface redshift does not exceed 2, as expected.
