Forecasts for low spin black hole spectroscopy in Horndeski gravity
Forecasts for low spin black hole spectroscopy in Horndeski gravity
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Horndeski 引力中低自旋黑洞光谱的预测
DOI:
10.1103/physrevd.99.104082
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发表时间:
2019
影响因子:
5
通讯作者:
Tattersall O
中科院分区:
文献类型:
--
作者:
Tattersall O
We investigate the prospect of using black hole spectroscopy to constrain the parameters of Horndeski gravity through observations of gravitational waves from perturbed black holes. We study the gravitational waves emitted during ringdown from black holes without hair in Horndeski gravity, demonstrating the qualitative differences between such emission in general relativity and Horndeski theory. In particular, quasinormal mode frequencies associated with the scalar field spectrum can appear in the emitted gravitational radiation. Analytic expressions for error estimates for both the black hole and Horndeski parameters are calculated using a Fisher matrix approach, with constraints on the “effective mass” of the Horndeski scalar field of orderor tighter being shown to be achievable in some scenarios. Estimates for the minimum signal-to-noise ratio required to observe such a signal are also presented.
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