Dortmund 2021 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 54: Cosmic Rays III

T 54.8: Vortrag

Mittwoch, 17. März 2021, 17:45–18:00, Td

Daily Electron Fluxes with AMS-02 — •Fabian Machate — 1. Physikalisches Institut B, RWTH Aachen University

The Alpha Magnetic Spectrometer (AMS-02) on the International Space Station has been performing precision measurements of cosmic rays in the GeV to TeV energy range since 2011. The time variation in the fluxes of electrons and positrons, caused by heliospheric modulation that varies with solar activity, has so far only been observed with monthly time resolution.

Now, an analysis to derive a daily flux of electrons with AMS-02 has been developed. It increases the acceptance by a factor of five, by including events outside the electromagnetic calorimeter. The new method allows the study of short-term variations in the electron flux, such as Forbush decreases.

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