论文标题
使用二进制黑洞的强烈镜头引力波使用宇宙学
Cosmography using strongly lensed gravitational waves from binary black holes
论文作者
论文摘要
预计第三代重力波（GW）检测器将在其运行期间检测数百万个二进制黑洞（BBH）合并。其中的一小部分（$ \ sim 1 \％$）将通过中间的星系和簇来强烈镜头，并产生多个可观察的GW信号副本。镜头事件的预期数量和镜头事件之间的时间延迟分布取决于宇宙学。我们开发了一种贝叶斯分析方法，用于从检测到的镜头事件数量及其时间延迟分布中估算宇宙学参数。预期的约束与从其他宇宙学测量结果获得的约束相当，但是探测其他探针未探索的不同红移制度（$ z \ sim 10 $）。
Third generation gravitational wave (GW) detectors are expected to detect millions of binary black hole (BBH) mergers during their operation period. A small fraction of them ($\sim 1\%$) will be strongly lensed by intervening galaxies and clusters, producing multiple observable copies of the GW signals. The expected number of lensed events and the distribution of the time delay between lensed events depend on the cosmology. We develop a Bayesian analysis method for estimating cosmological parameters from the detected number of lensed events and their time delay distribution. The expected constraints are comparable to that obtained from other cosmological measurements, but probing a different redshift regime ($z \sim 10$) that is not explored by other probes.
