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Evidence for rapid disc formation and reprocessing in the X-ray bright tidal disruption event candidate AT 2018fyk
ABSTRACT We present optical spectroscopic and Swift UVOT/XRT observations of the X-ray and UV/optical bright tidal disruption event (TDE) candidate AT 2018fyk/ASASSNā18ul discovered by ASASāSN. The Swift light curve is atypical for a TDE, entering a plateau after ā¼40 d of decline from peak. After 80 d the UV/optical light ā¦