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- Title
The Upcoming GAMMA-400 Experiment.
- Authors
Suchkov, Sergey I.; Arkhangelskaja, Irina V.; Arkhangelskiy, Andrey I.; Bakaldin, Aleksey V.; Chernysheva, Irina V.; Galper, Arkady M.; Dalkarov, Oleg D.; Egorov, Andrey E.; Kheymits, Maxim D.; Korotkov, Mikhail G.; Leonov, Aleksey A.; Leonova, Svetlana A.; Malinin, Alexandr G.; Mikhailov, Vladimir V.; Minaev, Pavel Yu; Pappe, Nikolay Yu.; Razumeyko, Mikhail V.; Topchiev, Nikolay P.; Yurkin, Yuri T.
- Abstract
The upcoming GAMMA-400 experiment will be implemented aboard the Russian astrophysical space observatory, which will be operating in a highly elliptical orbit over a period of 7 years to provide new data on gamma-ray emissions and cosmic-ray electron + positron fluxes, mainly from the galactic plane, the Galactic Center, and the Sun. The main observation mode will be a continuous point-source mode, with a duration of up to ~100 days. The GAMMA-400 gamma-ray telescope will study high-energy gamma-ray emissions of up to several TeV and cosmic-ray electrons + positrons up to 20 TeV. The GAMMA-400 telescope will have a high angular resolution, high energy and time resolutions, and a very good separation efficiency for separating gamma rays from the cosmic-ray background and the electrons + positrons from protons. A distinctive feature of the GAMMA-400 gamma-ray telescope is its wonderful angular resolution for energies of >30 GeV (0.01° for Eγ = 100 GeV), which exceeds the resolutions of space-based and ground-based gamma-ray telescopes by a factor of 5–10. GAMMA-400 studies can reveal gamma-ray emissions from dark matter particles' annihilation or decay, identify many unassociated, discrete sources, explore the extended sources' structures, and improve the cosmic-ray electron + positron spectra data for energies of >30 GeV.
- Subjects
ELLIPTICAL orbits; GAMMA rays; ELECTRON emission; POSITRONS; GALACTIC center; DARK matter; COSMIC rays; POSITRON annihilation
- Publication
Universe (2218-1997), 2023, Vol 9, Issue 8, p369
- ISSN
2218-1997
- Publication type
Article
- DOI
10.3390/universe9080369