Table 3: Photon indices and integral fluxes measured by HESS and MAGIC.
  HESSa HESSb MAGIC MAGIC
Epoch $\Gamma$ I(>200 GeV) $\Gamma$ I(>200 GeV)
    [10-11 cm-2 s-1]   [10-11 cm-2 s-1]
2005 $4.01\pm0.60_{\rm stat}$ $2.21\pm0.50_{\rm stat}$ $4.31\pm0.45_{\rm stat}$ $2.0\pm0.6_{\rm stat}$
2006 $4.45\pm0.48_{\rm stat}$ $1.72\pm0.29_{\rm stat}$ $3.95\pm0.35_{\rm stat}$ $0.6\pm0.2_{\rm stat}$

2005+2006
$4.46\pm0.34_{\rm stat}$ $1.85\pm0.25_{\rm stat}$ $4.21\pm0.25_{\rm stat}$ $1.0\pm0.4_{\rm stat}$
a The systematic error on the HESS $\Gamma$ is 0.1.
b The HESS fluxes are extrapolated from the values in Table 1 to above 200 GeV using the time-average $\Gamma =4.46$. The systematic error on the HESS flux is 20%.

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