Gravity Tests with Radio Pulsars in Perturbative and Nonperturbative Regimes

Understand

Searches for empirical clues beyond Einstein's general relativity (GR) are crucial to understand gravitation and spacetime.

• Radio pulsars have been playing an important role in testing gravity theories since 1970s.
• Because radio timing of binary pulsars is very sensitive to changes in the orbital dynamics, small deviations from what GR predicts can be captured or constrained.
• In this sense, the gravity sector in the standard-model extension was constrained tightly with a set of pulsar systems.