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arXiv 2202.01329gr-qc
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Einstein-scalar-Gauss-Bonnet引力中的黑洞敏感性

Black hole sensitivities in Einstein-scalar-Gauss-Bonnet gravity

Félix-Louis Julié, Hector O. Silva, Emanuele Berti, Nicolás Yunes

摘要:

爱因斯坦-标量-高斯-邦纳引力理论中的黑洞双星的后牛顿动力学依赖于所谓的“灵敏度”,即表征黑洞对由其伴星产生的随时间变化的标量场环境的绝热响应的量。本文用数值方法计算了非旋转黑洞(包括自发标度化黑洞)在三类Einstein-scalar-Gauss-Bonnet引力中的灵敏度:位移对称引力、非对称引力和高斯引力.在可能的情况下,我们比较我们的结果对微扰的分析结果,发现很好的协议。与广义相对论中的黑洞不同,爱因斯坦-标量-高斯-邦纳引力中的黑洞只存在于由理论的耦合常数控制的受限参数空间中。在黑洞二进制的敏感性所发挥的作用的初步研究表明,在原则上,黑洞可以驱动它们的存在域以外的inspiral期间,我们确定的二进制参数。

英文摘要:

The post-Newtonian dynamics of black hole binaries in Einstein-scalar-Gauss-Bonnet theories of gravity depends on the so-called "sensitivities", quantities which characterize a black hole's adiabatic response to the time-dependent scalar field environment sourced by its companion. In this work, we calculate numerically the sensitivities of nonrotating black holes, including spontaneously scalarized ones, in three classes of Einstein-scalar-Gauss-Bonnet gravity: the shift-symmetric, dilatonic and Gaussian theories. When possible, we compare our results against perturbative analytical results, finding excellent agreement. Unlike their general relativistic counterparts, black holes in Einstein-scalar-Gauss-Bonnet gravity only exist in a restricted parameter space controlled by the theory's coupling constant. A preliminary study of the role played by the sensitivities in black hole binaries suggests that, in principle, black holes can be driven outside of their domain of existence during the inspiral, for binary parameters which we determine.

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。

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