Very high energy gamma rays from the direction of Sagittarius A*

et al; H.E.S.S. Collaboration: F. Aharonian

Very high energy gamma rays from the direction of Sagittarius A*

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arxiv astro-ph/0408145 v2 pith:X4ZHYNTJ submitted 2004-08-09 astro-ph

H.E.S.S. Collaboration: F. Aharonian , et al This is my paper · ORCID

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We report the detection of a point-like source of very high energy (VHE) gamma-rays coincident within 1' of Sgr A*, obtained with the H.E.S.S. array of Cherenkov telescopes. The gamma-rays exhibit a power-law energy spectrum with a spectral index of -2.2 +/- 0.09 +/- 0.15 and a flux above the 165 GeV threshold of (1.82 +/- 0.22) * 10^-7 m^-2 s^-1. The measured flux and spectrum differ substantially from recent results reported in particular by the CANGAROO collaboration.

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