July 28, 2020 to August 6, 2020
virtual conference
Europe/Prague timezone

New Properties of Neon, Magnesium, Silicon, and Sulfur Primary Cosmic Rays observed by the Alpha Magnetic Spectrometer on the International Space Station

Jul 28, 2020, 7:00 PM
25m
virtual conference

virtual conference

Talk 08. Astro-particle Physics and Cosmology Astro-particle Physics and Cosmology

Speaker

Qi Yan (Massachusetts Inst. of Technology (US))

Description

Neon, Magnesium, Silicon, and Sulfur nuclei in cosmic rays are thought to be mainly of primary origin, they are mainly produced and accelerated in astrophysical sources. We report the latest precise measurements of the Ne, Mg, Si, and S individual spectra in the rigidity range from 2 GV to 3 TV by the Alpha Magnetic Spectrometer based on the data collected during its first 7 years of operation. Unexpectedly, compared with the spectra of light nuclei Helium, Carbon, and Oxygen, the spectra of heavy nuclei Ne, Mg, Si, and S show distinctly different new properties.

Primary author

Qi Yan (Massachusetts Inst. of Technology (US))

Co-authors

Vitaly Choutko (Massachusetts Inst. of Technology (US)) Alberto Oliva (Universita e INFN, Bologna (IT)) Mercedes Paniccia (Universite de Geneve (CH))

Presentation materials