Status of the GAMMA-400 Project
A. M. Galper, O. Adriani, R. L. Aptekar, I. V. Arkhangelskaja, A. I., Arkhangelskiy, M. Boezio, V. Bonvicini, K. A. Boyarchuk, Yu. V. Gusakov, M., O. Farber, M. I. Fradkin, V. A. Kachanov, V. A. Kaplin, M. D. Kheymits, A. A., Leonov, F. Longo, P. Maestro, P. Marrocchesi
TL;DR
The paper presents the preliminary design of the GAMMA-400 space gamma-ray telescope, highlighting its advanced resolution and rejection capabilities aimed at diverse astrophysical and cosmic-ray research.
Contribution
It introduces the design specifications and scientific objectives of GAMMA-400, a new gamma-ray telescope with enhanced resolution and background rejection.
Findings
Design achieves 1-2° angular resolution at 100 MeV
Energy resolution ~1% at >100 GeV
Proton rejection factor ~10^6
Abstract
The preliminary design of the new space gamma-ray telescope GAMMA-400 for the energy range 100 MeV - 3 TeV is presented. The angular resolution of the instrument, 1-2{\deg} at E{\gamma} ~100 MeV and ~0.01^{\circ} at E{\gamma} > 100 GeV, its energy resolution ~1% at E{\gamma} > 100 GeV, and the proton rejection factor ~10E6 are optimized to address a broad range of science topics, such as search for signatures of dark matter, studies of Galactic and extragalactic gamma-ray sources, Galactic and extragalactic diffuse emission, gamma-ray bursts, as well as high-precision measurements of spectra of cosmic-ray electrons, positrons, and nuclei.
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