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SUMMARY:Milena Crnogorčević: Do We See Superluminous Supernovae in Gamma
  Rays?
DTSTART:20260507T111500Z
DTEND:20260507T120000Z
DTSTAMP:20260506T184600Z
UID:indico-event-9691@indico.fysik.su.se
DESCRIPTION:I’ll present our new paper (with Tim Linden\, Ariel Goobar\,
  and Brian Metzger) searching for GeV emission from the largest sample of 
 SLSNe to date. Using 17 years of Fermi-LAT data and physically motivated t
 ransparency windows\, we find no population-level detections and place str
 ong constraints on gamma-ray efficiency—well below standard model predic
 tions. However\, one source (SN 2017egm) shows a suggestive excess that is
  well described by a magnetar model\, hinting that gamma-ray-bright SLSNe 
 may exist but are rare or diverse.\n \n\nhttps://indico.fysik.su.se/event
 /9691/
LOCATION:FC61
URL:https://indico.fysik.su.se/event/9691/
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