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A Neutral-Point Expansion of the Ideal MagnetosphereThe idealized model of the geomagnetic field-solar wind interaction yields a singular (neutral) point on the magnetopause at which the magnetic field vanishes. If we expand the fields in a power series around this point, including quadratic terms, we can derive an approximate equation of the magnetopause in a small neighborhood of the neutral point which is consistent with the idealized boundary conditions to fourth order. We then consider the additional pressure due to multiple reflections of particles in this neighborhood and show that less than a 4 per cent correction to the single-reflection pressure condition is necessary.
Document ID
19640017439
Acquisition Source
Goddard Space Flight Center
Document Type
Other - NASA Reference Publication (RP)
Authors
Blum, Ronald (NASA Goddard Inst. for Space Studies New York, NY, United States)
Date Acquired
September 2, 2013
Publication Date
May 21, 1964
Subject Category
Fluid Mechanics
Report/Patent Number
NASA-RP-274
Accession Number
64N27353
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
MATHEMATICAL MODEL
GEOMAGNETIC FIELD
MAGNETOSPHERE
SOLAR WIND

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