Gravity seminar - Leonhard Kehrberger Seminar

Abstract: I will first explain how one can use certain conservation laws to read off late-time tails of gravitational perturbations of black holes from their "peeling behaviour" near null infinity $\mathcal I^+$. In particular, I will show that the late-time tails may change drastically from the usual Price's law asymptotics if peeling fails, i.e. if null infinity is not smooth. Finally, building on arguments by Christodoulou and Damour, I will show that peeling should indeed be expected to fail in physical situations, and thus give an alternative prediction for late-time tails to the usual Price's law asymptotics.

 

Talk slides