Current distribution in rotating magnetized winds across the light cylinder

Details Current distribution in rotating magnetized winds across the light cylinder Current distribution in rotating magnetized winds across the light cylinder

Oct 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995mnras.276..825n&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 276, Issue 3, pp. 825-835.

Astronomy and Astrophysics

Astronomy

10

Mhd, Relativity, Pulsars: General, Ism: Jets And Outflows, Galaxies: Active

Scientific paper

The regularity of the poloidal electric current distribution is an important factor in checking the realizability of a solution for global magnetospheric structure. By solving the transfield force-balance equation, we obtain two analytic solutions across the light cylinder. One solution is at the limit of the poloidal matter-dominated case, and the other is a solution at the far distant region along the rotational axis with finite cylindrical radius (the polar region). From the current distribution of these solutions, we obtain a picture of the global current circuit in the rotating magnetized winds as follows. A strong column-shaped current exists on a scale similar to that of the light cylinder radius (the polar current), as does a widely distributed current inflowing to the system in the wind (the wind current). Simultaneously, neutral sheet current outflows on the equatorial plane. Solutions including the polar current are rejected as unphysical in some literature, but the current distribution in the above solutions is consistent with force balance near the rotational axis, and can be understood as being a property of the rotating winds.

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