Broadband γ-ray  spectrum of RX J1713.7–3946 as measured here (black points) and by HESS (blue points). The two bow tie bands denote systematic (dark green) and total (light green) uncertainties of the single power-law fit, the latter assuming that systematic and statistical uncertainties can be added in quadrature. The histogram indicates the TS value for each energy bin. The dotted line is the threshold for setting a 95% confident level upper limit.