Coherent Curvature Radiation and Proton Counterflow in the Pulsar Magnetosphere

Abstract

In the proton counterflow model of a pulsar magnetosphere that we have recently proposed, non-relativistic protons are supplied from the magnetosphere to flow toward the pulsar surface and screen an electric field above the polar cap region. In this Letter, we show that the proton counterflow is also suitable for the bunching of pair plasma. The two-stream instability is easily excited and can produce bunches of pairs with a relevant length scale to emit coherent curvature radiation.

arXiv comment11pages, 1 figure

References in corpus (5)

• Curvature radiation in pulsar magnetospheric plasma
• On the Nature of Pulsar Radio Emission
• Cherenkov-Curvature Radiation and Pulsar Radio Emission Generation
• On the Electric Field Screening by Electron-Positron Pairs in the Pulsar Magnetosphere II
• Electric field screening by a proton counterflow in the pulsar polar cap