The Space-Based Gamma-Ray Telescope GAMMA-400 and Its Scientific Goals
astro-ph.IM
/ Authors
A. M. Galper, O. Adriani, R. L. Aptekar, I. V. Arkhangelskaja, A. I. Arkhangelskiy, G. A. Avanesov, L. Bergstrom, E. A. Bogomolov, M. Boezio, V. Bonvicini
and 39 more authors
K. A. Boyarchuk, V. A. Dogiel, Yu. V. Gusakov, M. I. Fradkin, Ch. Fuglesang, B. I. Hnatyk, V. A. Kachanov, V. V. Kadilin, V. A. Kaplin, M. D. Kheymits, V. Korepanov, J. Larsson, A. A. Leonov, F. Longo, P. Maestro, P. Marrocchesi, V. V. Mikhailov, E. Mocchiutti, A. A. Moiseev, N. Mori, I. Moskalenko, P. Yu. Naumov, P. Papini
/ Abstract
The design of the new space-based gamma-ray telescope GAMMA-400 is presented. GAMMA-400 is optimized for the energy 100 GeV with the best parameters: the angular resolution ~0.01 deg, the energy resolution ~1%, and the proton rejection factor ~10E6, but is able to measure gamma-ray and electron + positron fluxes in the energy range from 100 MeV to 10 TeV. GAMMA-400 is aimed to 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.