Results 191 to 200 of about 1,308 (218)
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Interplanetary Magnetic Field Dynamics
2001The 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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Solar and Interplanetary Magnetic Field I. The General Magnetic Field
Publications of the Astronomical Society of Japan, 1956Abstract It is proposed that a possible solar and interplanetary magnetic field may have been built up by the movement of conducting material, steadily emitted from the sun, through the solar original magnetic field. An unknown function S(φ) and two parameters N and n, in this theory, are necessary to account for the shape of of lines ...
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Prediction of the interplanetary magnetic field strength
Journal of Geophysical Research: Space Physics, 1995A new model of the coronal and interplanetary magnetic field can predict both the interplanetary magnetic field strength and its polarity from measurements of the photospheric magnetic field. The model includes the effects of the large‐scale horizontal electric currents flowing in the inner corona, of the warped heliospheric current sheet in the upper ...
Xuepu Zhao, J. Todd Hoeksema
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Interplanetary Magnetic Fields and Cosmic Rays
Physical Review, 1955The existence in the region around the sun of a field-free cavity in the galactic magnetic field seems indicated by the low-energy cosmic rays that reach the earth from the sun. Such a cavity would be produced by the solar corpuscular emission. A mean radius of the order of 200 times the distance from the sun to the earth may be estimated for this ...
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Interplanetary Magnetic Field and the Auroral Zones
Physical Review Letters, 1961Abstract : It was found that a model with a southward interplanetary magnetic field leads to a natural explanation of the SD currents. Speculative aspects of the problem as they appear at this time are discussed. It should be remembered that this problem is amenable to revolutionary progress by observations from rockets or satellites which go out more ...
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Polar substorm and interplanetary magnetic field
Planetary and Space Science, 1971Abstract By means of the IMP 3 magnetic data, a study is made on the relationships between the interplanetary magnetic field and the development of polar substorm. It is found that an explosive growth of the westward electrojet tends to appear after the interplanetary magnetic field has directed southward for 1–2 hr.
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Interplanetary Magnetic Field Changes and the Magnetotail
1979The latest topical review (Burch, 1974) of magnetospheric effects directly related to the interplanetary magnetic field (IMF) described several observed associations between IMF changes and variations within the geomagnetic tail. The most firmly established among these was the good correlation between increases in the magnetic field intensity inside ...
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Interplanetary magnetic field and solar rotation
Planetary and Space Science, 2012Abstract This article presents analysis of interplanetary magnetic field (IMF) B measured at the L 1 point outside the geo-magnetosphere. The autocorrelation of daily values of the B x and B y component of the IMF reveal clear solar rotational modulation. The B z ( z -component of IMF) mostly do not show any such modulation.
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MODELING OF SOLAR AND INTERPLANETARY MAGNETIC FIELDS
Solar Physics, 1997A brief historical review of solar and interplanetary magnetic field modeling and analysis is presented. The modeling was initiated with the routine observation of longitudinal magnetograms and the application of current free potential magnetic fields for its interpretation.
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