Notes. The available data on the source candidates were collected from Abdalla et al. (2018b), except for Geminga and B0656+14 (Abeysekara et al. 2017a). HGPS names are used (Abdalla et al. 2018a) except for sources located outside of the HGPS; Geminga, B0656+14, CTA 1, 3C 58, G 0.9+0.1, and the Crab, where instead canonical names are given. The associated pulsar names from the ATNF catalogue (Manchester et al. 2005) are also shown and are numbered in cases where the association is not unique. We note that Ė and τ_c are the spin down luminosity and characteristic age of the associated pulsar. The sources are sorted by increasing Ė. The estimated distance to the pulsars, which may have large uncertainties, is taken from the ATNF catalogue (Manchester et al. 2005), unless a different reference is provided. The size is the 68% containment radius of the TeV emission. The estimated total energy in electrons and positrons is E_Total = Ėτ_c. The two estimates of energy densities in electrons and positrons are ε_e(Ė) and ε_e (L_γ) (see text in Sect. 3).

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