088218

Magnetars are neutron stars mainly powered by their huge magnetic fields. They go through long stretches of quiescence interrupted by periods of activity via short X-ray bursts large giant flares and yearly-timescale X-ray outbursts. Lately several normal pulsars showed magnetar-like emission and an FRB-like event was observed during a short X-ray burst prompting important questions on the exact physics and reach of the magnetar phenomenon. We propose a Joint XMM (85ks) and NuSTAR (170ks) ToO program aimed at gathering new insights on the physics involved in the magnetar outbursts. We will trigger this program on any object that will undergo a magnetar-like outburst during AO20 (especially non-canonical magnetars or FRB-like emitters). [truncated! Please see actual data for full text]