Gravitational waves from small spin-up and spin-down events of neutron stars
Garvin Yim
In this talk, I will outline a novel model that can account for small positive and negative changes in the spin of a neutron star, which collectively may contribute to the uncertain phenomenon of "timing noise". In brief, the model posits that changes in spin are caused by the excitation and decay of non-axisymmetric f-modes. A consequence of this is that gravitational waves are emitted, and hence, there is an independent test for our model using gravitational waves. We comment on the potential detectability of the corresponding gravitational waves using recent data from the Crab and Vela pulsars. Our results form the basis for a new multi-messenger study of pulsars. (Based on Yim & Jones, 2023)