| Texto completo | |
| Autor(es): |
Delgado Giler, Andres G.
[1]
;
Arbeletche, Luan B.
[1]
;
Bird, Ralph
[2]
;
Ong, Rene A.
[2]
;
de Souza, Vitor
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Inst Fis Sao Carlos, Sao Carlos - Brazil
[2] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 - USA
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Astroparticle Physics; v. 124, JAN 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
A method is proposed to reconstruct the depth at which showers reach the maximum number of charged particles (Xcharged max ) using atmospheric Cherenkov telescopes. The dependence of the Cherenkov signal with telescope distance from shower core is explored and a region in which the measurement is possible is determined (150 to 200 m). A parametrization is presented to reconstruct Xcharged max. The resolution of the method is studied as a function of energy, for different primary particle types and for telescope fields of view ranging from 3.5 degrees to 10 degrees. Good resolution (similar to 25 g/cm(2)) is achieved for most of the cases of primary particle type (gamma ray, proton and iron nuclei) and energy (10 TeV < E < 300 TeV). Very good resolution (<15 g/cm(2)) is achieved in the best cases and not so good resolution (> 40 g/cm(2)) is seen for energies below 30 TeV. The results presented here contribute to the understanding of the development of gamma-ray showers and suggest another possibility of using atmospheric Cherenkov telescopes to study cosmic rays in the TeV-PeV energy range. (C) 2020 Elsevier B.V. All rights reserved. (AU) | |
| Processo FAPESP: | 15/15897-1 - Cherenkov Telescope Array - CTA |
| Beneficiário: | Luiz Vitor de Souza Filho |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |