Table 2: Selection cuts used for the analysis of air shower events. The image amplitude (Size) is given in photo-electrons (p.e.), $E_{\rm max}$corresponds to the maximum reconstructed event energy, MRSW and MRSL represent the mean scaled reduced width and length parameters, and  $\theta ^2_{\rm cut}$ is the maximum squared angular distance with respect to the target position. The tail cuts represent the image cleaning thresholds applied. For details see Aharonian et al. (2006c).

Cuts
Size $E_{\rm max}$ MRSW MRSL $\theta ^2_{\rm cut}$ Tail cuts
  [p.e.] TeV     $\rm [deg^2]$ [p.e.]
Standard >80 100 [-2, 0.9] [-2, 2] 0.0125 5/10
Low energy >40 0.5 [-2, 0.75] [-2, 1.4] 0.024 4/7


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