Gamma- and Cosmic-Ray observations with the GAMMA-400 Gamma-Ray telescope

The future space-based GAMMA-400 gamma-ray telescope will operate onboard the Russian astrophysical observatory in a highly elliptic orbit during 7 years to observe Galactic plane, Center, Fermi Bubbles, Crab, Vela, Cygnus X, Geminga, Sun, and other regions measure gamma- cosmic-ray fluxes. Observations be performed point-source mode continuously for long time (~100 days). gamma rays energy range from ~20 MeV several TeV electrons + positrons up tens TeV. instrument have very good angle resolutions, high separation efficiency of background, as well protons. main feature is unprecedented angular resolution energies >30 GeV better than ground-based telescopes by factor 5-10. observations permit resolve annihilation or decay dark matter particles, identify many discrete sources, clarify structure extended specify data on electron positron spectra.