An astrometric search method for individually resolvable gravitational wave sources with Gaia

Abstract

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) therefore 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 the problem of searching for GWs from individually resolvable supermassive black hole binaries using astrometry is addressed for the first time; it is demonstrated how the data set can be compressed by a factor of more than $10^6$, with a loss of sensitivity of less than $1\%$. This technique is successfully used to recover artificially injected GWs from mock Gaia data. Repeated injections are used to calculate the sensitivity of Gaia as a function of frequency, and Gaia's directional sensitivity variation, or antenna pattern. Throughout the letter the complementarity of Gaia and pulsar timing searches for GWs is highlighted.

6 pages, 5 figures

References in corpus (9)

• The Gaia mission
• On measuring the gravitational-wave background using Pulsar Timing Arrays
• An all-sky search for continuous gravitational waves in the Parkes Pulsar Timing Array data set
• NANOGrav Limits on Gravitational Waves from Individual Supermassive Black Hole Binaries in Circular Orbits
• Searching for gravitational wave memory bursts with the Parkes Pulsar Timing Array
• Estimating the sensitivity of pulsar timing arrays
• Observing the dynamics of super-massive black hole binaries with Pulsar Timing Arrays
• Detection and localization of continuous gravitational waves with pulsar timing arrays: the role of pulsar terms
• Accelerated Bayesian model-selection and parameter-estimation in continuous gravitational-wave searches with pulsar-timing arrays

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