088008

XMM-Newton observations of Seyfert galaxies established outbursts of radio-quiet AGNs as a still poorly explored discovery space for AGN physics with an enormous potential to learn: NGC 1566 HE1136-2304 and NGC 2617 are rare and extreme changing-look AGNs tracing rapid changes in accretion and/or corona physics including the launching of new outflows. GSN 069 very likely traces an AGN disturbed by a tidal disruption event. We propose two 80ks simultaneous XMM-Newton(EPICRGS)/NuSTAR observations accompanied by optical spectroscopy of the next suited AGN outburst(s). They will allow tracing the accretion physics the launching of winds and outflows the spectral complexity connected with dramatic emission-line changes and possibly the elusive tidal disruption events. [truncated! Please see actual data for full text]