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Very high energy gamma rays from the composite SNR G0.9+0.1

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arxiv astro-ph/0501265 v1 pith:4EE2PFYJ submitted 2005-01-13 astro-ph

H.E.S.S. Collaboration: F. Aharonian , et al This is my paper · ORCID
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keywords detectedgammaphotoncompositeemissionenergygamma-rayhigh
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Very high energy (> 100 GeV) gamma-ray emission has been detected for the first time from the composite supernova remnant G0.9+0.1 using the H.E.S.S. instrument. The source is detected with a significance of 13 sigma, and a photon flux above 200 GeV of (5.7+/-0.7 stat +/- 1.2 sys) * 10^-12 cm^-2 s^-1, making it one of the weakest sources ever detected at TeV energies. The photon spectrum is compatible with a power law (dN/dE \propto E^-Gamma) with photon index Gamma = 2.40 +/- 0.11 stat +/- 0.20 sys. The gamma-ray emission appears to originate in the plerionic core of the remnant, rather than the shell, and can be plausibly explained as inverse Compton scattering of relativistic electrons.

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Cited by 2 Pith papers

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