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SUMMARY:A perspective of gamma-ray bursts registration due to gamma-telesc
 ope  GAMMA-400
DTSTART;VALUE=DATE-TIME:20181023T152000Z
DTEND;VALUE=DATE-TIME:20181023T153500Z
DTSTAMP;VALUE=DATE-TIME:20260518T055149Z
UID:indico-contribution-1286@cern.ch
DESCRIPTION:Speakers: Irene ARKHANGELSKAJA (National Research Nuclear Univ
 ersity MEPhI (Moscow Engineering Physics Institute))\nSeveral thousands of
  gamma-ray bursts were observed by various experiments\, but their sources
  of origin still remain unclear up to now. During several GRBs very high-e
 nergy photons were detected both in space and ground-based experiments (up
  to some tens of GeV and up to some TeV\, respectively).\n	The GAMMA-400 p
 roject will be the new generation of satellite gamma-observatory. Three ap
 ertures provide events registration from both upper and lateral directions
 : main\, additional and lateral ones. Its characteristics are better than 
 existing instruments both satellite and ground: energy resolution (~2% at 
 Eγ = 102 GeV)\, detectors dead time is better than 50 mks\, data storage 
 quota ~ 100 GB per day. But fine angular resolution (~10° at Eγ = 20 MeV
 \, ~0.1° at Eγ = 10 GeV\, ~0.01° at Eγ = 102 GeV) will be provided onl
 y for high energy events registered in the main aperture in the energy ban
 d from ~10 GeV to several TeV.  It allows making more effective observatio
 ns of GRBs (better signal to noise ratio)\, more detailed study of its hig
 h energy afterglow due long term measurements (because of high apogee orbi
 t provides low background variations with time) and detailed analysis of t
 he sources luminosity variability (spectral\, angular and temporal).\n\nht
 tps://indico.particle.mephi.ru/event/22/contributions/1286/
LOCATION:Hotel Intourist Kolomenskoye 4* Moskvorechye 2 hall
URL:https://indico.particle.mephi.ru/event/22/contributions/1286/
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