Speaker
Sam Dolan
(University of Sheffield)
Description
I will describe a new separation-of-variables method for obtaining the metric perturbations of Kerr spacetime in Lorenz gauge. The metric perturbation is constructed in the frequency domain from (Teukolsky) scalars that satisfy decoupled ordinary differential equations. For the case of a particle moving on a circular equatorial orbit of Kerr spacetime, I will compare the results of the new method with existing numerical results from a 2+1D time-domain code. I will discuss the prospects of implementing this for generic orbits on Kerr. This talk is based on work with Barry Wardell, Chris Kavanagh and Leanne Durkan.
