Results 221 to 230 of about 16,773 (267)

Compressible magnetopause reconnection

Journal of Geophysical Research, 1977
A fluid model is analyzed which describes the process of magnetic field merging in a geometry where a compressible magnetized plasma impinges upon a uniform vacuum magnetic field. This two-dimensional model is of the type first proposed by Petschek and co-workers more than a decade ago.
C. -K. Yang, B. U. Ö Sonnerup
openaire   +1 more source

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
openaire   +1 more source

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.
openaire   +1 more source

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
openaire   +1 more source

Structure of the magnetopause

Reviews of Geophysics, 1971
This paper reviews present understanding of the internal structure of the thin boundary layer, termed the magnetopause, that separates the distorted geomagnetic field in the magnetosphere from the flow of solar plasma in the magnetosheath. The fundamental theoretical concepts of the subject are introduced by considering the structure of the boundary ...
exaly   +2 more sources

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
openaire   +1 more source

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.
exaly   +2 more sources

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
openaire   +1 more source

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 ...
openaire   +1 more source

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
openaire   +1 more source