# Subluminal stochastic gravitational waves in pulsar-timing arrays and astrometry

@inproceedings{Qin2020SubluminalSG, title={Subluminal stochastic gravitational waves in pulsar-timing arrays and astrometry}, author={W. Qin and Kimberly K. Boddy and M. Kamionkowski}, year={2020} }

The detection of a stochastic background of low-frequency gravitational waves by pulsar-timing and astrometric surveys will enable tests of gravitational theories beyond general relativity. These theories generally permit gravitational waves with non-Einsteinian polarization modes, which may propagate slower than the speed of light. We derive the angular correlation patterns of observables relevant for pulsar timing arrays and astrometry that arise from a background of subluminal gravitational… CONTINUE READING

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