Properties of Cosmic Aluminum Nuclei: Results from the Alpha Magnetic Spectrometer

We report the properties of aluminum (Al) nuclei in cosmic rays measured in the rigidity range 2.15 GV to 3.0 TV with 0.51 million nuclei collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. We observed that above 6 GV the Al spectrum is well described by the w...

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Detalles Bibliográficos
Autores principales: Liu, Zhen, Paniccia, Mercedes, Zhang, Cheng
Lenguaje:eng
Publicado: SISSA 2022
Materias:
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.22323/1.395.0110
http://cds.cern.ch/record/2815317
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author Liu, Zhen
Paniccia, Mercedes
Zhang, Cheng
author_facet Liu, Zhen
Paniccia, Mercedes
Zhang, Cheng
author_sort Liu, Zhen
collection CERN
description We report the properties of aluminum (Al) nuclei in cosmic rays measured in the rigidity range 2.15 GV to 3.0 TV with 0.51 million nuclei collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. We observed that above 6 GV the Al spectrum is well described by the weighted sum of the silicon spectrum (primary cosmic rays) and the fluorine spectrum (secondary cosmic rays). The fraction of the primary component increases with rigidity and becomes dominant at highest rigidities. Al/Si abundance ratio at the source is determined independent of cosmic ray propagation.
id cern-2815317
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2022
publisher SISSA
record_format invenio
spelling cern-28153172022-07-09T19:34:26Zdoi:10.22323/1.395.0110http://cds.cern.ch/record/2815317engLiu, ZhenPaniccia, MercedesZhang, ChengProperties of Cosmic Aluminum Nuclei: Results from the Alpha Magnetic SpectrometerAstrophysics and AstronomyWe report the properties of aluminum (Al) nuclei in cosmic rays measured in the rigidity range 2.15 GV to 3.0 TV with 0.51 million nuclei collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. We observed that above 6 GV the Al spectrum is well described by the weighted sum of the silicon spectrum (primary cosmic rays) and the fluorine spectrum (secondary cosmic rays). The fraction of the primary component increases with rigidity and becomes dominant at highest rigidities. Al/Si abundance ratio at the source is determined independent of cosmic ray propagation.SISSAoai:cds.cern.ch:28153172022
spellingShingle Astrophysics and Astronomy
Liu, Zhen
Paniccia, Mercedes
Zhang, Cheng
Properties of Cosmic Aluminum Nuclei: Results from the Alpha Magnetic Spectrometer
title Properties of Cosmic Aluminum Nuclei: Results from the Alpha Magnetic Spectrometer
title_full Properties of Cosmic Aluminum Nuclei: Results from the Alpha Magnetic Spectrometer
title_fullStr Properties of Cosmic Aluminum Nuclei: Results from the Alpha Magnetic Spectrometer
title_full_unstemmed Properties of Cosmic Aluminum Nuclei: Results from the Alpha Magnetic Spectrometer
title_short Properties of Cosmic Aluminum Nuclei: Results from the Alpha Magnetic Spectrometer
title_sort properties of cosmic aluminum nuclei: results from the alpha magnetic spectrometer
topic Astrophysics and Astronomy
url https://dx.doi.org/10.22323/1.395.0110
http://cds.cern.ch/record/2815317
work_keys_str_mv AT liuzhen propertiesofcosmicaluminumnucleiresultsfromthealphamagneticspectrometer
AT panicciamercedes propertiesofcosmicaluminumnucleiresultsfromthealphamagneticspectrometer
AT zhangcheng propertiesofcosmicaluminumnucleiresultsfromthealphamagneticspectrometer

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