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Acceleration and Emission Mechanism for Wisps in the Crab Nebula |
| JING Hai-rong;TONG Yi;MAO Xin-jie |
| Department of Astronomy, Beijing Normal University, Beijing 100875 |
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| Cite this article: |
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JING Hai-rong, TONG Yi, MAO Xin-jie 1998 Chin. Phys. Lett. 15 854-855 |
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Abstract A new acceleration and emission mechanism is presented for wisps in the crab nebula. It is suggested that the energy of ultra-relativistic electrons comes mainly from Langmuir wave turbulence acceleration and synchrotron absorption acceleration, then they give rise to synchrotron emission. Langmuir wave turbulence acceleration is the dominant mechanism at ε ≤ ε* , while synchrotron absorption acceleration is more important at ε > ε*. The energy diffusion equation is investigated for ultra-relativistic electrons undergoing different acceleration and derive power-law solution. In wisp 1 region, the synchrotron emission spectra are obtained, and they are x-rays, optical but not radio. The results are consistent with observations.
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97.60.Gb
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Published: 01 November 1998
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