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The Fermi Large Area Telescope (LAT) collaboration recently released theupdated results of the measurement of the cosmic ray electron (CRE) spectrumand published its first constraints on the CRE anisotropy. With respect to theprevious Fermi-LAT results, the CRE spectrum measurement was extended down from20 to 7 GeV, thus providing a better lever arm to discriminate theoreticalmodels. Here we show that the new data strengthen the evidence for the presenceof two distinct electron and positron spectral components. Furthermore, we showthat under such hypothesis most relevant CRE and positron data sets areremarkably well reproduced. Consistent fits of cosmic-ray nuclei and antiprotondata, which are crucial to validate the adopted propagation setup(s) and to fixthe solar modulation potential, are obtained for the Kraichnan andplain-diffusion propagation setups, while the Kolmogorov one is disfavored. Wethen confirm that nearby pulsars are viable source candidates of the required$e^\pm$ extra-component. In that case, we show that the predicted CREanisotropy is compatible with Fermi-LAT constraints and that a positivedetection should be at hand of that observatory. Models assuming that onlynearby supernova remnants contribute to the high energy tail of the observedCRE spectrum are in contrast with anisotropy limits.

Implications of the Cosmic Ray Electron Spectrum and Anisotropy measured with Fermi-LAT