Spin-down power Ė and characteristic age τ_c of pulsars with either a firmly identified TeV PWN (blue diamonds) or a PWN candidate (orange circles). Assuming a PWN scenario, the values obtained for the unidentified sources HESS J1427−608 and HESS J1458−608 (black squares, labeled as “estimated”) are calculated (see Sect. 3.3 for details). The measured values of Ė and τ_c for the pulsar PSR J1459−6053 (Ray et al. 2011; Marelli et al. 2011), lying at the center of HESS J1458−608, are also reported (labeled as “measured”). The figure is reproduced from H.E.S.S. Collaboration (2018c) with the addition of HESS J1427−608 and HESS J1458−608.