Gravitational waves (GWs) in general relativity are assumed to contain only tensorial polarization states, with generic metric theories of gravity also allowing for vector- and scalar-polarized GWs. Assuming an association between the gravitational-wave and electromagnetic transients GW190521 and ZTF19abanrhr, we find a preference for tensorial GWs with a log₁₀ Bayes factor of 21.6 (with respect to vector-polarized GWs) and 38.4 (with respect to scalar-polarized GWs).

中文翻译：

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用 GW190521 和 ZTF19abanrhr 约束引力波极化

广义相对论中的引力波 (GW) 被假设为仅包含张量偏振态，而通用的引力度量理论也允许矢量和标量偏振 GW。假设引力波和电磁瞬变 GW190521 和 ZTF19abanrhr 之间存在关联，我们发现对 log ₁₀贝叶斯因子为 21.6（相对于矢量极化 GW）和 38.4（相对于标量极化 GW）的张量 GW 的偏好.