Prospects for transient gravitational waves at r-mode frequencies associated with pulsar glitches

Abstract

Glitches in pulsars are likely to trigger oscillation modes in the fluid interior of neutron stars. We examined these oscillations specifically at r-mode frequencies. The excited r-modes will emit gravitational waves and can have long damping time scales O(minutes - days). We use simple estimates of how much energy the glitch might put into the r-mode and assess the detectability of the emitted gravitational waves with future interferometers.

5 pages, 1 figure. Submitted to Journal of Physics: Conference Series, Proceedings of 9th Amaldi Conference on Gravitational Waves/ NRDA 2012, Cardiff (UK) July 2011