Properties of Iron Primary Cosmic Rays: Results from the Alpha Magnetic Spectrometer.
Journal
Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141
Informations de publication
Date de publication:
29 Jan 2021
29 Jan 2021
Historique:
received:
02
10
2020
revised:
22
11
2020
accepted:
09
12
2020
entrez:
12
2
2021
pubmed:
13
2
2021
medline:
13
2
2021
Statut:
ppublish
Résumé
We report the observation of new properties of primary iron (Fe) cosmic rays in the rigidity range 2.65 GV to 3.0 TV with 0.62×10^{6} iron nuclei collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. Above 80.5 GV the rigidity dependence of the cosmic ray Fe flux is identical to the rigidity dependence of the primary cosmic ray He, C, and O fluxes, with the Fe/O flux ratio being constant at 0.155±0.006. This shows that unexpectedly Fe and He, C, and O belong to the same class of primary cosmic rays which is different from the primary cosmic rays Ne, Mg, and Si class.
Identifiants
pubmed: 33576661
doi: 10.1103/PhysRevLett.126.041104
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM