Results 221 to 230 of about 12,572 (255)

The quadrupole magnetopause

Journal of Geophysical Research: Space Physics, 1985
The magnetopause of a symmetric quadrupole embedded in a parallel streaming plasma is calculated by means of the method of the Chapman‐Ferraro problem. The results are discussed with special attention being given to the position of the neutral points for the two symmetric cases of interaction.
M. P. Leubner, K. Zollner
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Magnetopause reconnection rate

Journal of Geophysical Research, 1974
Discussion of certain aspects of the magnetic field reconnection process at the magnetopause. It is argued that the upper limits on reconnection derived by Petschek (1964), on the one hand, and Yeh and Axford (1970) and Sonnerup (1970), on the other, may be reconciled, at least qualitatively.
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Polar Magnetopause Distance

1974
The distance from Earth to the magnetopause at very high latitudes has been measured on the HEOS-2 satellite. The wave experiment on this satellite measures magnetic and electric signals at five frequencies between 20 and 236 Hz. The transition from the magnetosphere into the sheath region is clearly indicated in these signals.
A. Bahnsen, I. B. Iversen, E. Ungstrup
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Stability of the magnetopause

Astrophysics and Space Science, 1976
The Magnetosphere-Solar Wind boundary is treated as a tangential discontinuity between collisionless plasma described by C.G.L. equations. An estimate is made, analytically, of the minimum shear speed required to render the interface unstable for propagation in any arbitrary direction.
G. L. Kalra, J. N. Tandon, Ramaswamy Rajaram   +2 more
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Magnetopause from pressure balance

Journal of Geophysical Research: Space Physics, 1999
The shape of the magnetopause and the field due to magnetopause currents are calculated from the requirement that the pressure in the magnetosheath be balanced by magnetic pressure inside the magnetosphere. The field due to magnetopause currents is calculated to be consistent with the iteratively adjusted magnetopause shape.
Thomas Sotirelis, Ching‐I. Meng
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The Structure of the Magnetopause

Planetary and Space Science, 2003
Abstract The solar wind is a magnetized flowing plasma that intersects the Earth's magnetosphere at a velocity much greater than that of the compressional fast mode wave that is required to deflect that flow. A bow shock forms that alters the properties of the plasma and slows the flow, enabling continued evolution of the properties of the flow on ...
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Magnetopause merging site asymmetries

Journal of Geophysical Research: Space Physics, 1985
Regions where a draped model magnetosheath magnetic field is nearly antiparallel to a model geomagnetic field are shown to be asymmetric for an interplanetary magnetic field (IMF) at the garden hose angle, as suggested by Heelis. When the IMF has a southward component, the asymmetry favors the dawn region for both IMF polarities.
N. U. Crooker, J. G. Luhmann, J. R. Spreiter, S. S. Stahara   +3 more
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Initial ISEE Magnetometer Results: Magnetopause Observations

Space Science Reviews, 1978
The magnetic field profiles across the magnetopause obtained by the ISEE-1 and -2 spacecraft separated by only a few hundred kilometers are examined for four passes. During one of these passes the magnetosheath field was northward, during one it was slightly southward, and in two it was strongly southward.
C.T. Russell, R.C. Elphic
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Ionospheric Signatures of Magnetopause Processes

1998
Whilst it is well-accepted that short-duration changes to the Interplanetary Magnetic Field (IMF) and solar wind cause high-latitude ionospheric transients observed by magnetic, optical and radar techniques, a coherent explanation of the zoo of signatures remains illusive.
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Demarcating the magnetopause boundary

Reviews of Geophysics, 1995
Determining the shape of the magnetopause is one of the oldest problems in space physics and one of its earliest success stories. Chapman and Ferraro [1931] were the first to recognize that the Earth's magnetic field carves out a cavity in the oncoming solar wind.
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