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The Fermi Large Area Telescope (LAT) has provided the measurement of the highenergy cosmic ray electrons plus positrons (CRE) spectrum with unprecedentedaccuracy form 20 GeV to 1 TeV. Recently this range has been extended down to ~7 GeV. The spectrum shows no prominent features and it is significantly harderthan that inferred from several previous experiments. While the reportedFermi-LAT data alone may be interpreted in terms of a single (electrondominated) Galactic component, when combined with other complementaryexperimental results, specifically the CRE spectrum measured by H.E.S.S., andespecially the positron fraction measured by PAMELA, an additional electron andpositron component seems to be required. We show that the acceleration ofelectron-positron pairs in Galactic pulsars may offer a natural (though notunique) interpretation of all those results.

The High Energy Cosmic Ray Electron Spectrum measured by Fermi Gamma-Ray Space Telescope: some possible interpretations