The gravitational waves accompanying the merger of two massive compact objects encode the distance to the merger without the usual appeal to a hierarchy of length scales.
CITATION STYLE
Holz, D. E., Hughes, S. A., & Schutz, B. F. (2018). Measuring cosmic distances with standard sirens. Physics Today, 71(12), 34–40. https://doi.org/10.1063/PT.3.4090
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