High-energy gamma-ray studying with GAMMA-400

Abstract

Extraterrestrial gamma-ray astronomy is now a source of new knowledge in the fields of astrophysics, cosmic-ray physics, and the nature of dark matter. The next absolutely necessary step in the development of extraterrestrial high-energy gamma-ray astronomy is the improvement of the physical and technical characteristics of gamma-ray telescopes, especially the angular and energy resolutions. Such a new generation telescope will be GAMMA-400. GAMMA-400, currently developing gamma-ray telescope, together with X-ray telescope will precisely and detailed observe in the energy range of ~20 MeV to ~1000 GeV and 3-30 keV the Galactic plane, especially, Galactic Center, Fermi Bubbles, Crab, Cygnus, etc. The GAMMA- 400 will operate in the highly elliptic orbit continuously for a long time with the unprecedented angular (~0.01° at Eγ = 100 GeV) and energy (~1% at Eγ = 100 GeV) resolutions better than the Fermi-LAT, as well as ground gamma-ray telescopes, by a factor of 5-10. GAMMA-400 will permit to resolve gamma rays from annihilation or decay of dark matter particles, identify many discrete sources (many of which are variable), to clarify the structure of extended sources, to specify the data on the diffuse emission.

arXiv comment8 pages, 9 figures, ICRC2017

References in corpus (14)

• Fermi Large Area Telescope Second Source Catalog
• Fermi Large Area Telescope First Source Catalog
• Design Concepts for the Cherenkov Telescope Array
• Detection of a Gamma-Ray Source in the Galactic Center Consistent with Extended Emission from Dark Matter Annihilation and Concentrated Astrophysical Emission
• 3FHL: The Third Catalog of Hard Fermi-LAT Sources
• Strong support for the millisecond pulsar origin of the Galactic center GeV excess
• 2FHL: The Second Catalog of Hard Fermi-LAT Sources
• The First Fermi-LAT Catalog of Sources Above 10 GeV
• Gamma Ray Lines from a Universal Extra Dimension
• Design and Performance of the GAMMA-400 Gamma-Ray Telescope for the Dark Matter Searches
• The H.E.S.S. central data acquisition system
• Upgrade of the MAGIC telescopes
• Status of space-based gamma-ray astronomy
• Searches for DM signals from the Galactic Centre region with H.E.S.S

Cited by in corpus (2)

• Synergies across the spectrum for particle dark matter indirect detection: how HI intensity mapping meets gamma rays
• A Potentially Detectable Gamma-Ray Line in the Fermi Galactic Center Excess -- In Light of One-Step Cascade Annihilations of Secluded (Vector) Dark Matter via the Higgs Portal