Orateur
Description
The gravitational memory effect is an unobserved prediction of general relativity, which states that gravitational waves can leave a permanent strain in spacetime. We investigated the prospects for detecting this memory effect with LISA from a massive black hole binary merger. Using Bayesian analysis, we assessed the conditions under which the memory signal can be confidently identified in LISA data. We were able to highlight a region of the source parameter space in which memory detection is likely, and compared these results with simulated populations of MBHBs to estimate the number of memory events LISA may see during its lifetime. Our analysis shows that LISA can detect the memory effect and constrain its amplitude, providing a probe for fundamental physics. Meanwhile, work has been carried out to search for memory imprints in PTA data. With the upcoming EPTA and IPTA-DR3, we are preparing to search for memory in these new data.
| Which working group does your abstract concern? | Tests de la relativité générale / Tests of General Relativity |
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