Properties of Cosmic Sodium : Results from the Alpha Magnetic Spectrometer

Discussion timeslot (ZOOM-Meeting): 14. July 2021 - 18:00
ZOOM-Meeting URL: https://desy.zoom.us/j/91896950007
ZOOM-Meeting ID: 91896950007
ZOOM-Meeting Passcode: ICRC2021
Corresponding Session: https://icrc2021-venue.desy.de/channel/17-Nuclear-CR-spectra-theory-and-observations-CRD/115
Live-Stream URL: https://icrc2021-venue.desy.de/livestream/Discussion-06/7

Abstract:
'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).rn 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.'

Authors: cheng zhang
Co-Authors: Zhen Liu | For the AMS collaboration
Collaboration: AMS

Indico-ID: 743
Proceeding URL: https://pos.sissa.it/395/106