Hadronic models for the energy spectrum of the HESS J1818-154/SNR G15.4+0.1 system

A.D. SUPANITSKY; L. SUPAN; G. CASTELLETTI

Córdoba

Congreso; 57 Reunión Anual de la Asociación Argentina de Astronomía; 2014

Since its discovery, the TeV source HESS J1818−154 has been linked to the supernova remnant G15.4+0.1. Both inverse Compton and neutral pion decay mechanisms were used to explain the observed TeV gamma-ray flux. The former was invoked since the detection of X-ray emission from a region compatible with the extended HESS source, while the discovery of dense molecular gas interacting with the supernova remnant was considered an argument to favour a hadronic scenario. In this work we present two alternative scenarios that explain the gamma-ray portion of the spectral energy distribution using a hadronic modelling of the data.