Results 271 to 280 of about 899,551 (302)

The interplanetary magnetic field structure

Nature, 1976
The seasonal bias in the sector structure of the interplanetary magnetic field has led to the suggestion that the field in each hemisphere of the solar cavity has the same polarity as the average magnetic field at the corresponding solar pole, and that the surface which separates the two polarity regions is only slightly warped.
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Interplanetary magnetic field and magnetospheric substorms

Planetary and Space Science, 1977
The interplanetary magnetic field (IMF) changes and the associated responses of the magnetosphere on November 1, 1972, are examined. IMF Bz changes consisted of a sudden southward turning, a slow northward turning, and a subsequent steady northward sense. Magnetospheric substorms occurred throughout this period.
R. P. Lepping, S.-I. Akasofu
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Precipitation of low‐energy electrons at high latitudes: Effects of interplanetary magnetic field and dipole tilt angle

, 1972
Data from the auroral particles experiment on Ogo 4 were used to study effects of interplanetary magnetic-field latitude and dipole tilt angle on high-latitude precipitation of low-energy electrons.
J. Burch
semanticscholar   +1 more source

The Configuration of the Interplanetary Magnetic Field

1972
The idealized basic structure of the interplanetary magnetic field is the familiar spiral wound on a cone whose axis is the solar rotation axis. Variations in the radial velocity of the solar wind produce large scale variations in pitch; slight distortions are also produced by the non-radial component of the solar wind velocity.
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Variations in the interplanetary magnetic field: Mariner 2: 1. Observed properties

, 1966
Properties of the variations in the interplanetary magnetic field observed between August 27 and November 15, 1962, are described. A heliocentric spherical polar coordinate system is employed. The polar axis is the sun's axis of rotation.
P. Coleman
semanticscholar   +1 more source

Interplanetary Magnetic Field Dynamics

2001
The role of the IMF in the dynamics of solar wind interaction with the geomagnetosphere was proposed by Dungey in 1961. Early in-situ IMF measurements in the 60's confirmed the association of the magnitude and direction of the IMF with the Kp magnetic activity index.
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Magnetic fields in the interplanetary medium

Advances in Space Research, 1982
Interplanetary magnetic field lines are attached to the Sun at one end • and their form is determined primarily by the motions of the solar wind and by the rotation of the Sun. The solar wind, in effect, carries the magnetic field lines with it as it moves radially away from the Sun, while the Sun carries the base of each line along a circle as it ...
openaire   +2 more sources

Relationship between changes in the interplanetary magnetic field and variations in the magnetic field at the Earth's surface

, 1967
Hourly average values of solar wind velocity and the components of the interplanetary magnetic field obtained by IMP 1 were combined to obtain the interplanetary electric field as measured in a coordinate system with one axis parallel to the earth's ...
G. Rostoker, C. Fälthammar
semanticscholar   +1 more source

Solar and Interplanetary Magnetic Fields

Science, 1966
Space probe observations of solar wind, solar magnetic field and interplanetary magnetic ...
openaire   +3 more sources

Power spectra and discontinuities of the interplanetary magnetic field - Mariner 4.

, 1968
Power spectra from 3 × 10−4 to 0.5 cps based on Mariner 4 interplanetary magnetic field data show a dependence on frequency ƒ that is roughly of the form ƒ−γ with γ typically near 3/2 and essentially always between 1 and 2 for each of the three ...
G. Siscoe, L. Davis, P. Coleman, E. Smith, Douglas E. Jones   +4 more
semanticscholar   +1 more source