Future GLAST observations of SNRs and PWNe

Computer Science

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Supernova Remnants, Pulsars, Gamma-Ray Sources, Gamma-Ray Bursts

Scientific paper

Shell-type Supernova remnants (SNRs) have long been known to harbour a population of ultra-relativistic particles, accelerated in the Supernova shock wave by the mechanism of Diffusive shock acceleration. Pulsar Wind Nebulae (PWNe) - diffuse structures surrounding young pulsars - are also known to be a site of particle acceleration in the Galaxy, γ-rays above 100 MeV provide a direct access to acceleration processes through the following channels: ultra-relativistic electrons emit γ-radiation through Inverse Compton scattering in ubiquitous photon fields (such as CMBR), protons emit γ-radiation through the decay of π0s, generated in hadronic interactions with Interstellar material such as gas clouds. The upcoming GLAST Large Area Telescope (LAT) will be operating in the energy range between 30 MeV and 300 GeV and will provide excellent sensitivity, angular and energy resolution in a so-far rather poorly investigated energy band to address important questions in our understanding of both shell-type SNRs and PWNe.

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