标题： 黑洞周围存在弦流体的Rastall引力中的准正则模态 显示英文标题

标题： Quasinormal Modes of a black hole surrounded by a fluid of strings in Rastall gravity

摘要： 在本文中，我们研究了在Rastall引力框架下被流体弦包围的黑洞的准正则模（QNMs）。我们分析了标量、电磁和引力扰动的行为，重点关注黑洞电荷$Q$和角动量$l$对准正则频率的影响。我们的数值结果揭示了参数$\varepsilon$的显著依赖性。这些趋势在不同类型的扰动中一致，强调了黑洞参数与QNMs行为之间的关系。 显示英文摘要

摘要： In this paper, we explore the quasinormal modes (QNMs) of a black hole surrounded by a fluid of strings within the framework of Rastall gravity. We analyze the behavior of scalar, electromagnetic, and gravitational perturbations, focusing on the influence of the black hole charge $Q$ and angular momentum $l$ on the quasinormal frequencies. Our numerical results reveal a significant dependence on the parameter $\varepsilon$. These trends are consistent across different types of perturbations, emphasizing the relationship between black hole parameters and QNMs behavior.