092386

SDSS-V currently ramping up to full operation will obtain repeated opticalspectroscopy for thousands of AGN. This will allow for the opticalidentification of currently transitioning changing-look AGN. We request 6 ToOsusing XMM-Newton and Swift to follow the X-ray and UV evolution of the ongoingoptical transition. XMM-Newton will deliver X-ray spectra in its visibilitywindows while Swift provides X-ray flux constraints in the time between. Theobtained X-ray UV and optical datasets will explore how the X-ray coronaaccretion disc and broad-emission line region interact with each other. It willdeliver valuable insights into how accretion flows evolve during AGN ignitionsand depletions. We will compare our results with the outcomes of a program on X-ray-selected changing-look AGN. [truncated! Please see actual data for full text]