11–15 Sept 2023
Europe/Rome timezone

The cosmic-ray electron spectrum measured with the MAGIC telescopes

11 Sept 2023, 15:20
15m
Room delta

Room delta

Charged Cosmic Rays CCR: Charged Cosmic Ray

Speaker

Daniel Kerszberg (IFAE-BIST)

Description

Cosmic-ray electrons and positrons (CREs) of TeV energies suffer severe energy losses during their propagation limiting their traveling distances to just a few kpc and, therefore, their measurement provides a unique channel to constrain local Galactic cosmic-ray sources. However, at high energies their detection is intrinsically difficult due to their low abundances and steep spectrum. In this context, ground-based imaging atmospheric Cherenkov telescopes (IACTs), such as MAGIC, can profit from their large collection areas to perform studies of CREs at energies where space-borne detectors are less sensitive. In this presentation, we will present two methods - a template fit method and a tight cut method - designed to detect and study CREs with IACTs. We will then apply these methods on data collected by the MAGIC telescopes to measure the energy spectrum of CREs between 300 GeV and 7 TeV. Additionally, we will provide a detailed analysis of the systematic errors that may affect this measurement.

Primary authors

Presentation materials