http://arxiv.org/abs/1911.00263
We propose a new method to test the cosmic distance duality relation using the strongly lensed gravitational waves. The spontaneous observations of image positions and the relative time delay between different images, the redshift measurements of the lens and source, together with the mass modelling of the lens galaxy, provide the angular diameter distance to the source. On the other hand, from the observation of gravitational wave signals the luminosity distance to the source can be obtained. Thus, the strongly lensed gravitational waves provide a unique way to test the cosmic distance duality relation.
H. Lin and X. Li
Mon, 4 Nov 19
35/55
Comments: 3 pages, 0 figure and 0 table
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