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DTSTART;TZID=Europe/Rome:20191218T114500
DTEND;TZID=Europe/Rome:20191218T124500
DTSTAMP:20260508T201107
CREATED:20191201T160620Z
LAST-MODIFIED:20191212T083130Z
UID:7142-1576669500-1576673100@www.oa-roma.inaf.it
SUMMARY:Gamma-ray bursts under a new light: the TeV emission from GRB190114C seen by the MAGIC telescopes
DESCRIPTION:Gamma-ray bursts (GRBs) are the most luminous sources of electromagnetic radiation known in the Universe. GRBs had been observed over a broad energy range from the radio band up to GeV gamma rays\, but the TeV gamma-ray band had remained terra incognita for a long time. Thanks to the MAGIC telescopes\, designed to catch the fast glimpses of the GRBs\, the first ever clear detection in this band was achieved for GRB 190114C\, a bright\, long GRB. The TeV emission from GRB190114C belongs to a new energetic component\, providing an energy output comparable at the one at lower energies. We will discuss the details of the observations by MAGIC and the accompanying multi-frequency measurements by more than 20 instruments\, from radio to gamma- rays\, and the inferences on the emission mechanisms. This historical\, highly significant detection has followed an intriguing hint of TeV emission from GRB 160821B\, a short GRB with an associated kilonova. This hint\, if real\, has potential multi-messenger implications on the detectability of gravitational wave alerts in high-energy gamma-rays. \n 
URL:https://www.oa-roma.inaf.it/event/colloquium-antonio-stamerra-3/
LOCATION:Aula Gratton
CATEGORIES:Seminari
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