The Future Space-Based GAMMA-400 Gamma-Ray Telescope for Studying Gamma and Cosmic Rays

N. P. Topchiev; A. M. Galper; I. V. Arkhangelskaja; A. I. Arkhangelskiy; A. V. Bakaldin; Yu. V. Gusakov; O. D. Dalkarov; A. E. Egorov; V. G. Zverev; A. A. Leonov; P. Yu. Naumov; N. Yu. Pappe; M. F. Runtso; Yu. I. Stozhkov; S. I. Suchkov; M. D. Kheimitz; I. V. Chernysheva; Yu. T. Yurkin

doi:10.3103/S106287381905037X

The Future Space-Based GAMMA-400 Gamma-Ray Telescope for Studying Gamma and Cosmic Rays

Authors: Topchiev N.P.¹, Galper A.M.¹^,2, Arkhangelskaja I.V.², Arkhangelskiy A.I.¹^,2, Bakaldin A.V.¹^,3, Gusakov Y.V.¹, Dalkarov O.D.¹, Egorov A.E.¹, Zverev V.G.¹, Leonov A.A.¹^,2, Naumov P.Y.², Pappe N.Y.¹, Runtso M.F.², Stozhkov Y.I.¹, Suchkov S.I.¹, Kheimitz M.D.², Chernysheva I.V.¹^,2, Yurkin Y.T.²
Affiliations:
1. Lebedev Physical Institute, Russian Academy of Sciences
2. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
3. Scientific Research Institute of System Analysis, Russian Academy of Sciences
Issue: Vol 83, No 5 (2019)
Pages: 629-631
Section: Article
URL: https://journals.rcsi.science/1062-8738/article/view/187390
DOI: https://doi.org/10.3103/S106287381905037X
ID: 187390

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The future space-based γ-ray telescope GAMMA-400 will be installed on the Navigator platform of the Russian astrophysical observatory. A highly elliptical orbit will allow prolonged (~100 days) continuous observations of many regions of the celestial sphere for 7–10 years. GAMMA-400 will measure fluxes of γ‑ray emission in the energy range of ~20 MeV to several TeV and electrons + positrons to ~20 TeV. The γ-ray telescope will have excellent separation of γ-ray emissions against the background of cosmic rays and electrons + positrons from protons, along with unprecedented angular (~0.01° at E_γ = 100 GeV) and energy (~1% at E_γ = 100 GeV) resolutions 5–10 times better than for the Fermi-LAT and ground-based γ-ray telescopes. GAMMA-400 observations will provide fundamentally new data on discrete sources and spectra of γ-ray emissions and electrons + positrons.

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The Future Space-Based GAMMA-400 Gamma-Ray Telescope for Studying Gamma and Cosmic Rays

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Abstract

About the authors

Supplementary files