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arXiv · 0907.1385

On the very high energy (>25GeV) pulsed emission in the Crab pulsar

Machabeli George·Osmanov Zaza
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Abstract

We have examined the recently detected very high energy (VHE) pulsed radiation from the Crab pulsar. According to the observational evidence, the observed emission (>25GeV) peaks at the same phase with the optical spectrum. Considering the cyclotron instability, we show that the pitch angle becomes non-vanishing leading to the efficient synchrotron mechanism near the light cylinder surface. The corresponding spectral index of the emission equals -1/2. By studying the inverse Compton scattering and the curvature radiation, it is argued that the aforementioned mechanisms do not contribute to the VHE radiation detected by MAGIC.

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Machabeli George, Osmanov Zaza. 2009-07-11. On the very high energy (>25GeV) pulsed emission in the Crab pulsar. https://doi.org/10.1088/0004-637x%2F709%2F2%2F547

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