Properties of Iron Primary Cosmic Rays: Results from the Alpha Magnetic Spectrometer

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 million 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 fl...

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Detalles Bibliográficos
Autores principales: Chen, Yao, Paniccia, Mercedes
Lenguaje:eng
Publicado: SISSA 2022
Materias:
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.22323/1.395.0129
http://cds.cern.ch/record/2815330
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author Chen, Yao
Paniccia, Mercedes
author_facet Chen, Yao
Paniccia, Mercedes
author_sort Chen, Yao
collection CERN
description 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 million 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.
id cern-2815330
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2022
publisher SISSA
record_format invenio
spelling cern-28153302022-07-09T19:34:28Zdoi:10.22323/1.395.0129http://cds.cern.ch/record/2815330engChen, YaoPaniccia, MercedesProperties of Iron Primary Cosmic Rays: Results from the Alpha Magnetic SpectrometerAstrophysics and AstronomyWe 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 million 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.SISSAoai:cds.cern.ch:28153302022
spellingShingle Astrophysics and Astronomy
Chen, Yao
Paniccia, Mercedes
Properties of Iron Primary Cosmic Rays: Results from the Alpha Magnetic Spectrometer
title Properties of Iron Primary Cosmic Rays: Results from the Alpha Magnetic Spectrometer
title_full Properties of Iron Primary Cosmic Rays: Results from the Alpha Magnetic Spectrometer
title_fullStr Properties of Iron Primary Cosmic Rays: Results from the Alpha Magnetic Spectrometer
title_full_unstemmed Properties of Iron Primary Cosmic Rays: Results from the Alpha Magnetic Spectrometer
title_short Properties of Iron Primary Cosmic Rays: Results from the Alpha Magnetic Spectrometer
title_sort properties of iron primary cosmic rays: results from the alpha magnetic spectrometer
topic Astrophysics and Astronomy
url https://dx.doi.org/10.22323/1.395.0129
http://cds.cern.ch/record/2815330
work_keys_str_mv AT chenyao propertiesofironprimarycosmicraysresultsfromthealphamagneticspectrometer
AT panicciamercedes propertiesofironprimarycosmicraysresultsfromthealphamagneticspectrometer

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