论文标题
从天空中的Pi - 重力波观测群的一般相对性的无效测试
Pi from the sky -- A null test of general relativity from a population of gravitational wave observations
论文作者
论文摘要
我们对观察到的重力波(GWS)的理解来自匹配数据与描述一般相对论(GR)的已知信号模型。这些模型以牛顿后形式主义表示,包含数学常数$π$。因此,允许$π$变化,因此可以进行强,通用且可通用的GR测试。从22 GW观察的人群中,我们进行了$π= 3.115^{+0.048} _ { - 0.088} $的天体物理测量值,并更喜欢GR作为正确的重力理论,其贝叶斯因子为321。我们发现可变$π$π$测试的可变性可抗性。
Our understanding of observed Gravitational Waves (GWs) comes from matching data to known signal models describing General Relativity (GR). These models, expressed in the post-Newtonian formalism, contain the mathematical constant $π$. Allowing $π$ to vary thus enables a strong, universal and generalisable null test of GR. From a population of 22 GW observations, we make an astrophysical measurement of $π=3.115^{+0.048}_{-0.088}$, and prefer GR as the correct theory of gravity with a Bayes factor of 321. We find the variable $π$ test robust against simulated beyond-GR effects.