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T: Fachverband Teilchenphysik

T 78: Gamma Astronomy II

T 78.7: Vortrag

Donnerstag, 3. April 2025, 17:45–18:00, VG 2.103

Analysis of the IC 443 Supernova Remnant with H.E.S.S. Data — •Lukas Großpietsch, Alison Mitchell, and Tina Wach for the H.E.S.S. collaboration — Friedrich-Alexander-Universität Erlangen-Nürnberg

The Jellyfish Nebula or IC 443 is one of the few observed supernova remnants (SNRs) interacting with a molecular cloud. In this contribution, we present a first spectral and spatial analysis of gamma-ray emission from IC 443 observed with the H.E.S.S. telescope array using the open source analysis package gammapy. The data show some significant emission best modeled by an extended source. Further- more, we combine our analysis with some multi-wavelength data which can best be modeled by a parent proton population producing gamma rays via neutral pion decay, indicated by the characteristic pion-bump. This analysis of the IC 443 gamma-ray emission observed by the H.E.S.S. telescope therefore again highlights IC 443 as a probe for cosmic ray acceleration in SNRs.

Keywords: Supernova Remnant; Gamma rays; Gammapy