16–18 Nov 2026
Auditório da UTFPR - campus Toledo
America/Sao_Paulo timezone

Multi-wavelength study of the supernova remnant HESS J1731−347

18 Nov 2026, 16:48
8m
Auditório da UTFPR - campus Toledo

Auditório da UTFPR - campus Toledo

Universidade Tecnológica Federal do Paraná - campus Toledo

Speaker

Debora Beatriz Gotz (Universidade Estadual de Londrina)

Description

Supernova remnants are considered important candidates for the acceleration of Galactic cosmic rays and possible sites where particles can be accelerated up to PeV energies, the so-called PeVatrons. Investigating the origin of their high-energy emission is therefore essential for understanding the particle acceleration mechanisms operating in these objects. In this work, we present a multi-wavelength study of the supernova remnant HESS J1731−347 (G353.6−0.7), combining radio, X-ray, and gamma-ray observations. A new analysis of Fermi Large Area Telescope (Fermi-LAT) data was performed to investigate the spectral and morphological properties of the emission in the region, including possible contributions from nearby sources and structures. The spectral energy distribution was subsequently modeled with the Naima package, considering leptonic and lepto-hadronic scenarios for the observed emission. We will present the results of the gamma-ray analysis, the main outcomes of the multi-wavelength modeling, and a discussion of the possible leptonic and hadronic contributions to the emission from HESS J1731−347 and their implications for particle acceleration in the remnant.

CPF 08719117957

Author

Debora Beatriz Gotz (Universidade Estadual de Londrina)

Co-authors

M Felipe Sousa (Universidade Federal do Paraná) Rita dos Anjos (Universidade Federal de São Carlos (UFSCar))

Presentation materials

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