论文标题
带有相互作用的夸克物质方程的电动带电的奇怪恒星
Electrically charged strange stars with an interacting quark matter equation of state
论文作者
论文摘要
研究了基于冷和致密的扰动量子染色体动力学（PQCD）的相互作用夸克物质方程（EOS）预测的电荷奇怪夸克恒星的性能。考虑到恒星内电荷分布的不同模型以及总电荷的不同值，分析了奇怪的恒星的稳定性。还提供了与使用MIT袋模型得出的预测的比较。我们表明，与中性同行相比，奇怪恒星内部净电荷的存在意味着更大的最大质量。此外，我们证明了PQCD EOS意味着最大的带电奇怪恒星质量的较大值，而充电的恒星非常重，是针对径向振荡的稳定系统。对于由$ q（r）=βr^3 $给出的电荷分布，PQCD EOS意味着与MIT Bag模型预测相反，对于大量重新归一化量表以及$β$的较大值以及$β$的大值。
The properties of electrically charged strange quark stars predicted by an interacting quark matter equation of state (EoS) based on cold and dense perturbative quantum chromodynamics (pQCD) are investigated. The stability of strange stars is analyzed considering different models for the electric charge distribution inside the star as well as for distinct values for the total electric charge. A comparison with the predictions derived using the MIT bag model is also presented. We show that the presence of a net electric charge inside strange stars implies in a larger maximum mass in comparison to their neutral counterparts. Moreover, we demonstrate that the pQCD EoS implies larger values for the maximum mass of charged strange stars, with very heavy charged stars being stable systems against radial oscillations. For an electric charge distribution given by $q(r) = βr^3$, the pQCD EoS implies unstable configurations for large values of the renormalization scale as well as for large values of $β$, in contrast to the MIT bag model predictions.
