One-Dimensional Electric Field Structure of an Outer Gap Accelerator
CHEN Shi-Bo1, ZHANG Li1,2
1Department of Physics, Yunnan University, Kunming 650031
2National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, PO Box 110, Kunming 650011
One-Dimensional Electric Field Structure of an Outer Gap Accelerator
CHEN Shi-Bo1;ZHANG Li1,2
1Department of Physics, Yunnan University, Kunming 650031
2National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, PO Box 110, Kunming 650011
Abstract： We re-study the one-dimensional electric field structure of an outer gap accelerator by considering the physical limit of trans-field height. Inside the outer gap, the charge depletion creates a large electric
field along the magnetic field lines. Electrons and/or positrons are accelerated to ultra-relativistic energies by this longitudinal electric field, and then radiate γ-ray photons by curvature radiation. The collision of these γ-rays and ambient x-ray photons further produce radiating particles, resulting in a stationary gap. We solve the structure of this longitudinal electric field together with the distributions of electrons and positrons and γ-ray photons for an aligned rotator. Our results indicate that the outer gap can extend to the light cylinder using reasonable parameters.
CHEN Shi-Bo;ZHANG Li;. One-Dimensional Electric Field Structure of an Outer Gap Accelerator[J]. 中国物理快报, 2006, 23(10): 2881-2884.
CHEN Shi-Bo, ZHANG Li,. One-Dimensional Electric Field Structure of an Outer Gap Accelerator. Chin. Phys. Lett., 2006, 23(10): 2881-2884.
2006, Vol. 23 
