论文标题
与标准警报器的距离二元性关系的限制
Constraints on the distance duality relation with standard sirens
论文作者
论文摘要
除了IA型超新星（SNIA）和Baryon声学振荡（BAO）模拟数据外，我们还使用引力波（GW）标准警报器，以预测电磁和重力距离二元关系（DDR）的限制。我们基于特定的DDR违规模型以及基于遗传算法的机器学习重建方法来利用一种参数化方法。我们发现，GW提供了使用BAO数据来约束DDR的替代方法，与SNIA结合使用时，我们考虑的违规参数达到了$ 3 \％$的约束，而仅将$ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \\\\，大约为约1.4 $。我们还调查了被忽视的重力修饰可能导致对DDR违规的错误检测的可能性，即使筛选机制是活跃的。我们发现，对于非常极端修改的重力方案，这种错误检测可能非常重要，而在更现实的情况下，最多可降至$ \oft4σ$。由于SNIA+GW和SNIA+BAO组合之间引入的张力，假探测还可以为修改后的重力机构提供吸烟枪。
We use gravitational wave (GW) standard sirens, in addition to Type Ia supernovae (SNIa) and baryon acoustic oscillation (BAO) mock data, to forecast constraints on the electromagnetic and gravitational distance duality relations (DDR). We make use of a parameterised approach based on a specific DDR violation model, along with a machine learning reconstruction method based on the Genetic Algorithms. We find that GW provide an alternative to the use of BAO data to constrain violations of the DDR, reaching $3\%$ constraints on the violation parameter we consider when combined with SNIa, which is only improved by a factor of $\approx1.4$ if one instead considers the combination of BAO and SNIa. We also investigate the possibility that a neglected modification of gravity might lead to a false detection of DDR violations, even when screening mechanisms are active. We find that such a false detection can be extremely significant, up to $\approx10σ$ for very extreme modified gravity scenarios, while this reduces to $\approx4σ$ in a more realistic case. False detections can also provide a smoking gun for the modified gravity mechanism at play, as a result of the tension introduced between the SNIa+GW and SNIa+BAO combinations.
