Evidence for Glitch Activity from a Second CCO\: PSR J0821-4300

Until recently, CCO pulsars, with weak dipole Bfields and small spindownrates, were defined as stable rotators. Now, longterm timing of 1E 1207.45209revealed unexpected timing glitches and/or strong timing noise, unprecedentedfor a pulsar with such small spindown rates, and has profound implications forthe Bfield evolution of CCOs and their emission mechanism(s). It may support atimely conjecture that glitches could be triggered in CCOs by diffusion of astrong, buried internal field that rivals those found in magnetars. We now haveevidence of similar timing behaviour from the CCO PSR J08214300 in Puppis A. Wepropose to monitor PSR J0821 4300 to resolve the nature of its timing anomaly,possible new evidence of magnetic field growth on a CCO. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]