摘要The time-dependent non-thermal particle and photon spectra are reproduced for a Type Ia SNR Tycho with radio, x-ray, GeV and TeV emission within the framework of the diffusive shock acceleration of the non-thermal particles. TeV photons can come from the inverse Compton scattering of relativistic electrons and from the π0−decay process in proton-proton interaction. The results show that (1) the hadronic case can model the observed multiwavelength spectrum well and, peculiarly, the π0-decay process appears to be necessary to explain the GeV emission; and (2) magnetic field amplification is vital in the SNR.
Abstract：The time-dependent non-thermal particle and photon spectra are reproduced for a Type Ia SNR Tycho with radio, x-ray, GeV and TeV emission within the framework of the diffusive shock acceleration of the non-thermal particles. TeV photons can come from the inverse Compton scattering of relativistic electrons and from the π0−decay process in proton-proton interaction. The results show that (1) the hadronic case can model the observed multiwavelength spectrum well and, peculiarly, the π0-decay process appears to be necessary to explain the GeV emission; and (2) magnetic field amplification is vital in the SNR.
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