The Synchrotron Emission Mechanism in the Recently Detected Very High Energy Radiation from the Crab Pulsar

Abstract

Interpretation of the recently discovered very high energy (VHE) pulsed emission from the Crab pulsar is presented. By taking into account the fact that Crab pulsar's radiation for the optical and VHE spectrum peak at the same phases, we argue that the source of this broad band emission is spatially localized. It is shown that the only mechanism providing the results of the MAGIC Cherenkov telescope, should be the synchrotron radiation. We find that in the magnetospheric electron-positron plasma, due to the cyclotron instability, the pitch angle becomes non-vanishing, which leads to the efficient synchrotron mechanism, intensifying on the light cylinder lengthscales. We also estimate the VHE radiation spectral index to be equal to -1/2.

arXiv comment8 pages, 1 figure

References in corpus (4)

• VHE Gamma-Ray Observation of the Crab Nebula and its Pulsar with the MAGIC telescope
• High-Altitude Emission from Pulsar Slot Gaps: The Crab Pulsar
• On the efficiency of particle acceleration by rotating magnetospheres in AGN
• Centrifugally driven relativistic dynamics on curved trajectories

Cited by in corpus (6)

• On the simultaneous generation of high energy emission and submillimeter/infrared radiation from active galactic nuclei
• The influence of corotation on the high energy synchrotron emission in Crab-like pulsars
• Synchrotron emission driven by the Cherenkov-drift instability in active galactic nuclei
• The generation of connected high and very high energy $\gamma$-rays and radio emission in active galactic nuclei
• On the mechanism of the pulsed high energy emission from the pulsar PSR B1509-58
• Very high energy emission of Crab-like pulsars driven by the Cherenkov drift radiation