Residual test statistic (TS) maps for E> 3 GeV in a 4° × 4° region for HESS J1731−347 (top) and SN 1006 (bottom). The background model is described in Sect. 2 and the SNRs are not included. The point sources included in the model are represented by diamonds (3FGL sources) and crosses (additional background sources). The H.E.S.S. significance contours of HESS J1731−347 (Abramowski et al. 2011) and SN 1006 (Acero et al. 2010) are shown in white in the panels. The source HESS J1729−345 seen near the SNR HESS J1731−347 is shown on the TS map (top) but is not included in the morphological template used to derive upper limits. No Fermi-LAT sources are detected in the vicinity of SN 1006.