Gamma- and Cosmic-Ray Observations with the GAMMA-400 Gamma-Ray Telescope

Abstract

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

arXiv commentSubmitted to Advances in Space Research, special issue "Astrophysics of CRs", 31 pages, 22 figures

References in corpus (28)

• The Large Area Telescope on the Fermi Gamma-ray Space Telescope Mission
• Multi-messenger Observations of a Binary Neutron Star Merger
• Observation of an anomalous positron abundance in the cosmic radiation
• Direct detection of a break in the teraelectronvolt cosmic-ray spectrum of electrons and positrons
• Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S
• The Fermi Galactic Center GeV Excess and Implications for Dark Matter
• The Third Swift Burst Alert Telescope Gamma-Ray Burst Catalog
• The Fourth Fermi-GBM Gamma-Ray Burst Catalog: A Decade of Data
• The DArk Matter Particle Explorer mission
• Teraelectronvolt emission from the $\gamma$-ray burst GRB 190114C
• RadioAstron -- a Telescope with a Size of 300 000 km: Main Parameters and First Observational Results
• A very-high-energy component deep in the Gamma-ray Burst afterglow
• A decade of Gamma-Ray Bursts observed by $Fermi$-LAT: The 2${}^{nd}$ GRB catalog
• The Most Likely Sources of High Energy Cosmic-Ray Electrons in Supernova Remnants
• Cosmic-ray electron+positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope
• GeV-Scale Thermal WIMPs: Not Even Slightly Dead
• Extended Measurement of the Cosmic-Ray Electron and Positron Spectrum from 11 GeV to 4.8 TeV with the Calorimetric Electron Telescope on the International Space Station
• The Ep,i - Eiso correlation: type I gamma-ray bursts and the new classification method
• Status of the GAMMA-400 Project
• AMS-100: The Next Generation Magnetic Spectrometer in Space -- An International Science Platform for Physics and Astrophysics at Lagrange Point 2
• Bounds on axion-like particles from the diffuse supernova flux
• Galactic factories of cosmic-ray electrons and positrons
• AMEGO: Exploring the Extreme Multimessenger Universe
• Broadband Spectral Properties of Bright High-Energy Gamma-Ray Bursts Observed with BATSE and EGRET
• Search for dark matter signatures in the gamma-ray emission towards the Sun with the Fermi Large Area Telescope
• Reconciling hints on axion-like-particles from high-energy gamma rays with stellar bounds
• Precision measurement of the (e${}^{+}$ + e${}^{-}$) flux in primary cosmic rays from 0.5 GeV to 1 TeV with the Alpha Magnetic Spectrometer on the International Space Station
• A separation of electrons and protons in the GAMMA-400 gamma-ray telescope

Cited by in corpus (4)

• Ultra-High-Energy Cosmic Rays: The Intersection of the Cosmic and Energy Frontiers
• Simulation study of performance of the Very Large Area gamma-ray Space Telescope
• Telescope Concepts in Gamma-Ray Astronomy
• Pair Production Detectors for Gamma-ray Astrophysics