Three Mistakes in Pulsar Electrodynamics

Details Three Mistakes in Pulsar Electrodynamics Three Mistakes in Pulsar Electrodynamics

2010-08-23

arxiv.org/abs/1008.3764v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

7 pages, 7 figures,

Scientific paper

In the paper Pulsar Electrodynamics, published in 1969, Goldreich and Julian propose some basic properties of pulsars, such as the oft-cited Goldreich-Julian density, light cylinder, open and closed magnetic field lines, corotation and so on. However, inspection of their mathematics reveals three mistakes: first, the relative velocity is irrelevantly replaced by the corotation velocity; second, a hypothesis in their theory is contradictory to Maxwell's equations; and third, their theory neglected a special solution of the frozen-in field equation which is of particular importance for pulsar research. We additionally describe the results of a series of magnetohydrodynamic experiments that may be beneficial to the understanding of pulsar electrodynamics.

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