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abstract: 'Recent $\gamma$-ray observations suggest that the $\gamma$-ray millisecond pulsar (MSP) population is separated into two sub-classes with respect to the pair multiplicity. Here, we calculate the cosmic ray electron/positron spectra from MSPs. Based on the assumption of the equipartition in the pulsar wind region the typical energy of electrons/positrons ejected by a MSP with the pair multiplicity of order unity is $\sim50$ TeV. In this case, we find that a large peak at 10 - 50 TeV energy range would be observed in the cosmic ray electron/positron spectrum. Even if the fraction of pair starved MSPs is 10%, the large peak would be detectable in the future observations. We also calculate the contribution from MSPs with high pair multiplicity to the electron/positron spectrum. We suggest that if the multiplicity of dominant MSP population is $\sim 10^3$, electrons/positrons from them may contribute to the observed excess from the background electron/positron flux and positron fraction.'
author:
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    Shota Kisaka$^{1 \ast}$, Norita Kawanaka$^{2 \star}$\
    $^1$ Department of Physics, Hiroshima University, Higashi-Hiroshima 739-8526, Japan\
    $^2$ Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem, 91904, Israel\
    Email: $^\ast$ kisaka@theo.phys.sci.hiroshima-u.ac.jp, $^\star$ norita@phys.huji.ac.il
title: TeV Cosmic Ray Electrons from Millisecond Pulsars
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stars: 