Journal
ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS
Volume 29, Issue 8, Pages 495-501Publisher
MAIK NAUKA/INTERPERIODICA PUBL
DOI: 10.1134/1.1598231
Keywords
plasma astrophysics; magnetohydrodynamics; shock waves
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The toroidal magnetic field frozen in the relativistic plasma ejected by pulsars must play a significant role in the formation of jet-like features observed in the central parts of plerions. We performed a semiquantitative analysis and calculations of the plasma flow in a plerion using the perturbation theory. We show that for the latitudinal magnetic-field distribution expected during the interaction of the pulsar wind with the interstellar medium, the magnetic field will have an appreciable effect on the flow primarily near the rotation axis. In the equatorial region, the effect of the magnetic field is negligible up to distances of 7r(sh). (C) 2003 MAIK Nauka/lnterperiodican.
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