Notes: The gas parameters are derived from HI and CO(1-0) emission, from circular regions toward HESS J1534−571, HESS J1614−518, and HESS J1912+101 in the respective velocity ranges; the centers and extensions of these regions are the best fit centers and R_out presented in Table 3 as derived from the morphological study of the TeV sources. The resulting total encircled gas mass is given in M_{HI +H2}. Density ranges are calculated by assuming that the line-of-sight thickness is between a value equal to the SNR diameter (upper limit) and the approximatethickness of a Galactic arm (0.5 kpc, lower limit; see Appendix B.3 for a more detailed description). The values n_p,HI, n_p,H2 indicate the estimated gas density coming from atomic (HI) and molecular (H2) gas contributions, respectively. The value gives the energy content of relativistic protons in the range 10 TeV–100 TeV, which emit γ-rays in the range 1 TeV–10 TeV; the proton spectral index is the same as the photon index Γ in the TeV range (see Table 4). The value assumes a proton spectral index equal to the TeV photon index from 10 TeV–100 TeV and an index of 2 from 10 TeV down to 1GeVin proton energy.