Origin of the light cosmic ray component below the ankle

0546850 - FZÚ 2022 RIV US eng J - Článek v odborném periodiku
Supanitsky, A. D. … celkem 3 autorů
Origin of the light cosmic ray component below the ankle.
Physical Review D. Roč. 98, č. 10 (2018), č. článku 103016. ISSN 2470-0010. E-ISSN 2470-0029
Výzkumná infrastruktura: AUGER-CZ - 90038
Klíčová slova: ultra-high energy cosmic rays * Pierre Auger Observatory
Obor OECD: Particles and field physics
Impakt faktor: 4.368, rok: 2018
Způsob publikování: Omezený přístup
https://doi.org/10.1103/PhysRevD.98.103016

The origin and nature of the ultrahigh energy cosmic rays remains a mystery. However, considerable progress has been achieved in past years due to observations performed by the Pierre Auger Observatory and Telescope Array. Above 10(18) eV the observed energy spectrum presents two features: a hardening of the slope at similar to 10(18.6) eV, which is known as the ankle, and a suppression at similar to 10(19.6) eV. The composition inferred from the experimental data, interpreted by using the current high energy hadronic interaction models, seems to be light below the ankle, showing a trend to heavier nuclei for increasing values of the primary energy. Also, the anisotropy information is consistent with an extragalactic origin of this light component that would dominate the spectrum below the ankle.
Trvalý link: http://hdl.handle.net/11104/0323229