Left: spectral energy distribution of HESS J1458−608 with those of the associated Fermi-LAT sources. The Fermi-LAT upper limits are calculated with a confidence level of 95%. Since the γ-ray pulsar PSR J1459−6053 is reported in several Fermi-LAT catalogs, only its best-fit spectrum and SED from the 4FGL catalog (4FGL J1459.5−6053) are shown for visibility purpose. Right: broadband nonthermal emission of HESS J1458−608 in a leptonic scenario with E_min = 1 GeV, E_cut = 60 TeV, B = 10 μG, p = 2, and W_e = 7 × 10⁴⁷ × (d/8 kpc)² erg.