74 citations · 333 across the 13 of their papers we have counts for
4 papers · 1 filter
Persistent gravitational wave observables: Nonlinear plane wave spacetimes
Éanna É. Flanagan, Alexander M. Grant, Abraham I. Harte +1
In the first paper in this series, we introduced "persistent gravitational wave observables" as a framework for generalizing the gravitational wave memory effect. These observables…
Angular momentum at null infinity in Einstein-Maxwell theory
Béatrice Bonga, Alexander M. Grant, Kartik Prabhu
On Minkowski spacetime, the angular momentum flux through null infinity of Maxwell fields, computed using the stress-energy tensor, depends not only on the radiative degrees of fre…
Conserved currents for electromagnetic fields in the Kerr spacetime
Alexander M. Grant, Éanna É. Flanagan
We construct a variety of conserved currents for test electromagnetic fields on a Kerr background. Our procedure, which involves the symplectic product for electromagnetism and sym…
Persistent gravitational wave observables: general framework
Éanna É. Flanagan, Alexander M. Grant, Abraham I. Harte +1
The gravitational wave memory effect is characterized by the permanent relative displacement of a pair of initially comoving test particles that is caused by the passage of a burst…