Jul 12 – 23, 2021
Online
Europe/Berlin timezone

Properties of Cosmic Sodium : Results from the Alpha Magnetic Spectrometer

Jul 14, 2021, 6:00 PM
1h 30m
06

06

Talk CRD | Cosmic Ray Direct Discussion

Speaker

cheng zhang (Institute of high energy physics, Chinese Academy of Sciences)

Description

We report the properties of sodium (Na) cosmic rays in the rigidity range 2.15 GV to 3.0 TV with 0.46 million nuclei collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. We observed that above 6 GV the Na flux is well described by the weighted sum of the silicon flux (primary cosmic rays) and the fluorine flux (secondary cosmic rays).
The fraction of primary component increases with rigidity and becomes dominant at highest rigidities. Na/Si abundance ratio at the source is determined independent of cosmic ray propagation models.

Keywords

Cosmic rays & astroparticles; Cosmic ray composition & spectra; Cosmic ray acceleration; Cosmic ray propagation; Cosmic ray sources

Subcategory Experimental Results
Collaboration AMS

Primary author

cheng zhang (Institute of high energy physics, Chinese Academy of Sciences)

Co-authors

Presentation materials

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