An empirical model of the plasma density distribution in the distant earth magnetosheath

Details An empirical model of the plasma density distribution in the distant earth magnetosheath An empirical model of the plasma density distribution in the distant earth magnetosheath

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992georl..19.2285s&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 19, no. 23, p. 2285-2288.

Computer Science

Sound

6

Density Distribution, International Sun Earth Explorer 1, Magnetosheath, Plasma Density, Space Plasmas, Aeronomy, Gas Dynamics, Geomagnetic Tail, Magnetopause

Scientific paper

We use published data from several spacecraft and new data from the sounder on ISEE-1 to construct a model of the normalized magnetotail magnetosheath plasma density distribution. The model assumes symmetry of revolution of the magnetosheath around the tail axis. It is valid in the range of aberrated GSE X(') from 0 to -200 RE with a rms fractional deviation from the data of 30 percent, equal to the relative uncertainty of the data themselves. As in gasdynamic models, the magnetosheath density gradient, perpendicular to the tail axis, increases when the distance to the bow shock decreases. For 0 greater than X(') greater than -12 RE, the density at the magnetopause is found to decrease with the absolute value of X(') less rapidly than predicted by gasdynamic models.

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