由度规-仿射蜂巢模型产生的黑洞：基于$M87^*$和$Sgr A^*$阴影及银河微类星体准周期振荡的约束
Constrain from shadows of $M87^*$ and $Sgr A^*$ and quasiperiodic oscillations of galactic microquasars on a black hole arising from metric-affine bumblebee model
AI总结：
本研究利用M87*和Sgr A*的阴影观测及微类星体高频准周期振荡，约束度规-仿射蜂巢模型中自由洛伦兹破缺参数，并分析粒子运动与拱线频率。
摘要：
我们研究了一个静态球对称黑洞度规，该度规源于无迹度规-仿射蜂巢模型的真空解，在该模型中，当蜂巢场获得非零真空期望值时，会发生自发洛伦兹对称性破缺。一个自由的洛伦兹破缺参数进入度规-仿射蜂巢模型的基本表述。在本研究中，我们利用事件视界望远镜（EHT）合作组织对$M87^*$和$SgrA^*$的观测来分析黑洞的阴影，并尝试约束该自由的洛伦兹破缺参数。我们还研究了类时测地线上的粒子运动，并计算了相应的拱线频率。我们进一步利用已报道的微类星体高频准周期振荡（QPOs）来约束洛伦兹破缺参数，为其对天体物理现象的潜在影响提供了新的见解。
英文摘要：
We examine a static spherically symmetric black hole metric that originates from the vacuum solution of the traceless metric-affine bumblebee model in which spontaneous Lorentz symmetry-breaking occurs when the bumblebee fields acquire a non-vanishing vacuum expectation value. A free Lorentz-violating parameter enters into the basic formulation of the metric-affine bumblebee model. In this study, we use observations from the Event Horizon Telescope (EHT) collaboration on $M87^*$ and $SgrA^*$ to analyse the shadow of the black hole and an attempt has been made to constrain that free Lorentz-violating parameter. We also investigate particle motion over time-like geodesics and compute the corresponding epicyclic frequencies. We further constrain the Lorentz-violating parameter by using the reported high-frequency quasi-periodic oscillations (QPOs) of microquasars, offering new insights into its possible impact on astrophysical phenomena.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
