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arxiv: 1507.06246 · v3 · submitted 2015-07-22 · 🌌 astro-ph.IM

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GAMMA-400 gamma-ray observatory

N.P. Topchiev , A.M. Galper , V. Bonvicini , O. Adriani , R.L. Aptekar , I.V. Arkhangelskaja , A.I. Arkhangelskiy , A.V. Bakaldin
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L. Bergstrom E. Berti G. Bigongiari S.G. Bobkov M. Boezio E.A. Bogomolov L. Bonechi M. Bongi S. Bottai G. Castellini P.W. Cattaneo P. Cumani O.D. Dalkarov G.L. Dedenko C. De Donato V.A. Dogiel N. Finetti D. Gascon M.S. Gorbunov Yu.V. Gusakov B.I. Hnatyk V.V. Kadilin V.A. Kaplin A.A. Kaplun M.D. Kheymits V.E. Korepanov J. Larsson A.A. Leonov V.A. Loginov F. Longo P. Maestro P.S. Marrocchesi M. Martinez A.L. Menshenin V.V. Mikhailov E. Mocchiutti A.A. Moiseev N. Mori I.V. Moskalenko P.Yu. Naumov P. Papini J.M. Paredes M. Pearce P. Picozza A. Rappoldi S. Ricciarini M.F. Runtso F. Ryde O.V. Serdin R. Sparvoli P. Spillantini Yu.I. Stozhkov S.I. Suchkov A.A. Taraskin M. Tavani A. Tiberio E.M. Tyurin M.V. Ulanov A. Vacchi E. Vannuccini G.I. Vasilyev J.E. Ward Yu.T. Yurkin N. Zampa V.N. Zirakashvili V.G. Zverev
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classification 🌌 astro-ph.IM
keywords gamma-raygamma-400emissionenergywillangularelectronsfluxes
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The GAMMA-400 gamma-ray telescope with excellent angular and energy resolutions is designed to search for signatures of dark matter in the fluxes of gamma-ray emission and electrons + positrons. Precision investigations of gamma-ray emission from Galactic Center, Crab, Vela, Cygnus, Geminga, and other regions will be performed, as well as diffuse gamma-ray emission, along with measurements of high-energy electron + positron and nuclei fluxes. Furthermore, it will study gamma-ray bursts and gamma-ray emission from the Sun during periods of solar activity. The energy range of GAMMA-400 is expected to be from ~20 MeV up to TeV energies for gamma rays, up to 20 TeV for electrons + positrons, and up to 10E15 eV for cosmic-ray nuclei. For high-energy gamma rays with energy from 10 to 100 GeV, the GAMMA-400 angular resolution improves from 0.1{\deg} to ~0.01{\deg} and energy resolution from 3% to ~1%; the proton rejection factor is ~5x10E5. GAMMA-400 will be installed onboard the Russian space observatory.

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