Very high-energy gamma rays from the direction of Sagittarius A
- Aharonian, F.
- Akhperjanian, A.G.
- Aye, K.-M.
- Bazer-Bachi, A.R.
- Beilicke, M.
- Benbow, W.
- Berge, D.
- Berghaus, P.
- Bernlohr, K.
- Bolz, O.
- Boisson, C.
- Borgneier, C.
- Breitling, F.
- Brown, A.M.
- Gordo, J. Bussons
- Chadwick, P.M.
- Chitnis, V.R.
- Chounet, L.-M.
- Cornils, R.
- Degrange, B.
- Djannati-Atai, A.
- Drury, L.O'C.
- Ergin, T.
- Espigat, P.
- Feinstein, F.
- Fleury, P.
- Fontaine, G.
- Funk, S.
- Gallant, Y.
- Giebels, B.
- Gillessen, S.
- Goret, P.
- Guy, J.
- Hadjichristidis, C.
- Hauser, M.
- Heinzelmann, G.
- Henri, G.
- Hermann, G.
- Holleran, M.
- Horns, D.
- Jager, O.C. De
- Jung, I.
- Khelifi, B.
- Komin, Nu.
- Konopelko, A.
- Latham, I.J.
- Gallou, R. Le
- Lemoine, M.
- Leroy, N.
- Lohse, T.
- Marcowith, A.
- Masterson, C.
- Mccomb, T.J.L.
- Naurois, M. De
- Nolan, S.J.
- Noutsos, A.
- Orford, K.J.
- Ouchrif, M.
- Panter, M.
- Pelletier, G.
- Pita, S.
- Pohl, M.
- Puhlhofer, G.
- Punch, M.
- Raubenheimer, B.C.
- Raue, M.
- Raux, J.
- Redondo, I.
- Reimer, A.
- Reimer, O.
- Ripken, J.
- Rivoal, M.
- Rob, L.
- Rolland, L.
- Rowell, G.
- Sahakian, V.
- Sauge, L.
- Schlenker, S.
- Schuster, C.
- Schwanke, U.
- Siewert, M.
- Sol, H.
- Steenkamp, R.
- Stegmann, C.
- Tavernet, J.-P.
- Theoret, C.G
- Tluczykont, M.
- Walt, D.J. van Der
- Vasileiadis, G.
- Vincent, P.
- Visser, B.
- Volk, H.J.
- Wagner, S.J.
DOIAbstract
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) \times 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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