http://arxiv.org/abs/2212.02221
The imprint of extremely low frequency primordial gravitational wave on a gravitational lens system with a non-aligned source-deflector-observer configuration is investigated in work (Liu, 2022, MNRAS, 517, 2769) from which it shows that time delay with perturbation from extremely low frequency primordial gravitational wave could deviate from the one deduced from the theoretical model as much as 100 percent with a series of chosen parameters. However, the frequency of gravitational wave chosen in work (Liu, 2022, MNRAS, 517, 2769) is a little bit confusing. Here, with the suitable parameters chosen in this work, the results show that time delay between different images of the source in the gravitational lens system with perturbation from primordial gravitational wave with extremely low frequency could strongly deviate from the one resulting from the theoretical model as much as about several hundred percent, indicating that time delay from gravitational lens system could be used to detect extremely low frequency primordial gravitational wave.
W. Liu
Tue, 6 Dec 22
9/87
Comments: 3 pages, 1 figure
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