A multi-component Langmuir-mode source for the observed pulsar coherent emission
Abstract
Several classes of neutron star are sources of coherent emission at frequencies of 10^2 - 10^3 MHz: others are radio-quiet. The primary emission spectra are broadly universal in form over many orders of magnitude in rotation period and polar-cap magnetic flux density. The existence of nulls and mode-changes in some radio-loud pulsars can be understood only as a manifestation of magnetospherical bistability. An ion-proton plasma with a possible background of electron-positron pairs is formed at the polar caps of stars with positive corotational charge density and is shown here to be a physical basis for the presence or absence of coherent emission and a likely reason why bistability may be present in the later stages of a pulsar lifetime.
Cite
@article{arxiv.1504.01911,
title = {A multi-component Langmuir-mode source for the observed pulsar coherent emission},
author = {P. B. Jones},
journal= {arXiv preprint arXiv:1504.01911},
year = {2015}
}
Comments
11 pages