论文标题
测量爱因斯坦标量高斯重力重力中重力波的标量标量极化
Measuring the ringdown scalar polarization of gravitational waves in Einstein scalar Gauss-Bonnet gravity
论文作者
论文摘要
我们使用该理论的数值相对性模拟在解耦极限中使用该理论的数值相对性模拟，对爱因斯坦标量高斯（ESGB）重力的二进制黑洞合并的循环阶段产生的标量波建模。通过在物质场作用中标量场与度量标准的共形耦合，我们表明该理论中的重力波可以具有标量极化。我们对ESGB重力中RINGDOWN信号的标量准正常模式进行建模，并量化当前和未来的重力波检测器可以观察到在二进制黑孔聚结的环down阶段发出的标量辐射的光谱。我们发现，在该理论的耦合参数的限制内，由当前的理论和观察性约束设置为$ 10^1-10^3 \ $ 10^1-10^3 \，M _ {\ odot} $质量范围的标量响应信号预计可远低于当前可检测性的范围网络（ligo-ligo-ligo） - ligo-kul-buntranational-wave-buntrantial-theShold（带有下一代探测器，例如爱因斯坦望远镜。
We model the scalar waves produced during the ringdown stage of binary black hole coalescence in Einstein scalar Gauss-Bonnet (EsGB) gravity, using numerical relativity simulations of the theory in the decoupling limit. Through a conformal coupling of the scalar field to the metric in the matter-field action, we show that the gravitational waves in this theory can have a scalar polarization. We model the scalar quasi-normal modes of the ringdown signal in EsGB gravity, and quantify the extent to which current and future gravitational wave detectors could observe the spectrum of scalar radiation emitted during the ringdown phase of binary black hole coalescence. We find that within the limits of the theory's coupling parameters set by current theoretical and observational constraints, the scalar ringdown signal from black hole remnants in the $10^1 - 10^3 \, M_{\odot}$ mass range is expected to be well below the detectability threshold with the current network of gravitational-wave detectors (LIGO-Virgo-KAGRA), but is potentially measurable with next-generation detectors such as the Einstein Telescope.
