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Ragan, L. Fortson, M. Capasso, M. Errando, M. J. Lang, M. Kertzman, M. Kherlakian, M. Lundy, M. Nicholl, M. Nievas-Rosillo, M. Pohl, M. Santander, M. Splettstoesser, O. Hervet, P. Bangale, P. Kaaret, P. Moriarty, P. T. Reynolds, Q. Feng, R. A. Ong, R. Mukherjee, R. Shang, S. Kumar, S. O'Brien, S. R. Patel, T. B. Humensky, T. K Kleiner, V. V. Dwarkadas, W. Benbow, W. F Hanlon, W. Jin","submitted_at":"2023-02-13T20:58:55Z","abstract_excerpt":"Superluminous supernovae (SLSNe) are a rare class of stellar explosions with luminosities ~10-100 times greater than ordinary core-collapse supernovae. One popular model to explain the enhanced optical output of hydrogen-poor (Type I) SLSNe invokes energy injection from a rapidly spinning magnetar. A prediction in this case is that high-energy gamma rays, generated in the wind nebula of the magnetar, could escape through the expanding supernova ejecta at late times (months or more after optical peak). 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