标题： 轴向扰动在广义标量-张量理论中的毛发黑洞 显示英文标题

标题： Axial perturbations of hairy black holes in generalised scalar-tensor theories

摘要： 引力波观测可以在强场区域检验广义相对论（GR）的有效性。某些标量-张量理论确实预测，致密天体可能会表现出与其GR对应体显著不同的特性。在此，我们探讨了三种此类类别中球对称黑洞的轴向扰动的准正常模：(i) 具有额外标量-里奇耦合的稀释子黑洞（EdRGB），(ii) 具有到高斯-博内不变量和里奇标量二次耦合的自发标量化的黑洞（EsRGB），(iii) 具有到高斯-博内不变量的二次和四次耦合的自发标量化的黑洞。 显示英文摘要

摘要： Gravitational wave observations can test the validity of General Relativity (GR) in the strong field regime. Certain classes of scalar-tensor theories indeed predict that compact objects can exhibit significant deviations from their GR counterparts. Here we explore the quasinormal modes of axial perturbations in spherically symmetric black holes in three such classes: (i) dilatonic black holes with an additional scalar-Ricci coupling (EdRGB), (ii) spontaneously scalarized black holes (EsRGB) with a quadratic coupling to the Gauss-Bonnet invariant and the Ricci scalar, (iii) spontaneously scalarized black holes with a quadratic and a quartic coupling to the Gauss-Bonnet invariant.