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Astrometric Search Method for Individually Resolvable Gravitational Wave Sources with Gaia

Gilmore, Gerard; Mihaylov, Deyan P.; Moore, Christopher J. +1 more

Gravitational waves (GWs) cause the apparent position of distant stars to oscillate with a characteristic pattern on the sky. Astrometric measurements (e.g., those made by Gaia) provide a new way to search for GWs. The main difficulty facing such a search is the large size of the data set; Gaia observes more than one billion stars. In this Letter …