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Electron surfing acceleration in a current sheet of flares

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Abstract

A model of electron acceleration in a current sheet of flares is studied by the analytical approximation solution and the test particle simulation. The electron can be trapped in a potential of propagating electrostatic wave. The trapped electron moving with the phase velocity v p of wave may be effectively accelerated by ev p/c × B z force along the outflow direction in the current sheet, if a criterion condition K > 0 for electron surfing acceleration is satisfied. The electron will be accelerated continuously until the electron de-trap from the wave potential at the turning point S.

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Authors and Affiliations

  1. Purple Mountain Observatory, Nanjing, 210008, China

    DeYu Wang

  2. School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, China

    QuanMing Lu

Authors
  1. DeYu Wang
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  2. QuanMing Lu
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Correspondence to DeYu Wang.

Additional information

Supported by the National Natural Science Foundation of China (Grant Nos. 40574065 and 40336052)

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Wang, D., Lu, Q. Electron surfing acceleration in a current sheet of flares. Sci. China Ser. G-Phys. Mech. Astron. 52, 1810–1812 (2009). https://doi.org/10.1007/s11433-009-0252-5

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  • DOI: https://doi.org/10.1007/s11433-009-0252-5

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