Extension of the Harris magnetic field model to obtain exact, two-dimensional, self-consistent X point structures

Details Extension of the Harris magnetic field model to obtain exact, two-dimensional, self-consistent X point structures Extension of the Harris magnetic field model to obtain exact, two-dimensional, self-consistent X point structures

Publishing date

Feb 2002

URL

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jgra..107.1022b&link_type=abstract

Journals

Journal of Geophysical Research (Space Physics), Volume 107, Issue A2, pp. SMP 3-1, CiteID 1022, DOI 10.1029/2001JA000216

Science

Physics

Field

Plasma Physics

Additional info 2

6

Additional info 3

Mathematical Geophysics: Modeling, Space Plasma Physics: Experimental And Mathematical Techniques, Space Plasma Physics: Kinetic And Mhd Theory, Space Plasma Physics: Magnetic Reconnection

Type

Scientific paper

Abstract

Harris [1962] developed a one-dimensional current sheet model in a magnetic field that was self-consistent with a collisionless Maxwellian plasma. This model has served as a starting point for many current sheet studies. Kan [1973] showed how this approach could be extended to two dimensions, but there has been little further application of this extension to magnetospheric problems. We have followed Kan's technique and give exact analytic expressions for plasma and magnetic field structures in the vicinity of a two-dimensional magnetic X point. The plasma is Maxwellian with arbitrary electron to ion mass ratio, but in the present stage of work the flow is constrained to be perpendicular to the plane containing the X point. The model is flexible in that it contains parameters that should allow it to be adapted to particular observational geometries and to be extended further using perturbation techniques to higher dimensions.

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