Abstract
Using the 'diffusion-convection' approximation, the available data on the measured cosmic-ray electron spectra have been demodulated to obtain a local interstellar electron spectrum near the Solar System. From the accumulated data, anomalous modulation of interstellar electrons has been observed in the years 1972-5. Excluding the data in the anomalous modulation period, the local interstellar electron spectrum obtained is as follows: j0(E(GeV))=(32.7-1.6+1.7)E-1.41+or-0.09 (m-2 s-1 sr-1 GeV-1) for 0.3 GeV<or=E<2.6 GeV and j0(E(GeV))=(86-25+35)E-2.41+or-0.21 (m-2 s-1 sr-1 GeV-1) for 2.6 GeV<or=E<12 GeV. The spectrum is in line with the high-energy electron spectra obtained by Prince (1979) and others. However, below 2.6 GeV, the spectral index is obviously smaller than those derived from the radio data. The implication of the discrepancy is discussed.
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