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SUMMARY:Two anomalous components of gamma-rays from GRB 221009A
DTSTART;VALUE=DATE-TIME:20261029T061500Z
DTEND;VALUE=DATE-TIME:20261029T063000Z
DTSTAMP;VALUE=DATE-TIME:20261105T175118Z
UID:indico-contribution-6195@cern.ch
DESCRIPTION:Speakers: Timur Dzhatdoev (INR RAS)\nGRB 221009A was a remarka
 ble gamma-ray burst\; it is sometimes referred to as “the brightest of a
 ll time” (BOAT). In this talk we consider two peculiar components of obs
 ervable gamma-rays from GRB 221009A: 1) a high energy “echo” of the GR
 B\nprompt emission phase produced by neutrons from photohadronic interacti
 ons inside the fireball with subsequent interaction of these neutrons with
  the material of the star forming region (SFR) and 2) external Compton (EC
 ) radiation due to the scattering of the accelerated electrons on the radi
 ation reflected from the SFR material. We show that both components are po
 tentially observable. In addition\, we discuss the shape of the primary (i
 ntrinsic) gamma-ray spectrum of GRB 221009A and the nature of the 300 TeV 
 gamma-ray-like event detected by the Carpet-3 array in temporal and angula
 r coincidence with GRB 221009A. Some details are available in astro-ph/260
 4.10378.\n\nhttps://indico.particle.mephi.ru/event/626/contributions/6195/
LOCATION: Conference Hall 2
URL:https://indico.particle.mephi.ru/event/626/contributions/6195/
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