Results 181 to 190 of about 4,343 (197)

Power spectra and discontinuities of the interplanetary magnetic field: Mariner 4

Journal of Geophysical Research, 1968
Power spectra and fluctuations of interplanetary magnetic field from Mariner 4 data for solar active and quiet ...
G. L. Siscoe, L. Davis, P. J. Coleman, E. J. Smith, D. E. Jones   +4 more
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Low-energy proton interaction with interplanetary magnetohydrodynamic discontinuities

Advances in Space Research, 1984
Abstract Low energy proton measurements associated with interplanetary MHD discontinuities were detected by the DFH instrument on ISEE-3 spacecraft during the solar maximum period, September 1978–March 1980. The observations were made by three detectors, within eight sectors 45°wide each around the spacecraft, in eight energy channels extended from ...
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Finding the Normal Direction of Interplanetary Directional Discontinuities—A New Scheme

Journal of Geophysical Research: Space Physics, 2019
AbstractDirectional discontinuities (DDs) are common structures in the interplanetary space. Correctly determining the normal of a DD is important to understand the changes of phase fronts of magnetic fields adjacent to a discontinuity as well as helpful for the applications in many regimes of space physics research.
Y.‐H. Yang, J. K. Chao, L. Yang, Q. H. Li, D. J. Wu   +4 more
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An analysis of Pioneer 9 low-frequency wave observations near interplanetary discontinuities

Journal of Geophysical Research, 1972
Observation of an unusually complex sector boundary on Feb. 2, 1969. Within a single seven-hour period the Pioneer 9 magnetometer and plasma probe detected a reverse shock, a slow shock, and a conventional fast shock. During this interval the electron gyrofrequency and the ion plasma frequency each varied by more than a factor of 10, and the low ...
F. L. Scarf, E. W. Greenstadt, J. H. Wolfe, D. S. Colburn   +3 more
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Variations of the occurrence rate of discontinuities in the interplanetary magnetic field

Journal of Geophysical Research, 1973
A statistical study of magnetic field discontinuities for the interval from February to October 1968 using data from the NASA Goddard Space Flight Center/University of Rome experiment on Pioneer 8 has been conducted. High-resolution data (10-sec averages) have been employed, stringent criteria being utilized to select more than 16,000 events, about 50
F. Mariani, B. Bavassano, U. Villante, N. F. Ness   +3 more
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Interaction of interplanetary shocks and rotational discontinuities with the Earth's bow shock

Journal of Geophysical Research: Space Physics, 1996
The magnetohydrodynamic (MHD) aspects of the interaction between the Earth's bow shock and interplanetary shocks or rotational discontinuities are systematically studied in this paper by MHD simulations. The interplanetary shocks under consideration include forward fast shocks, reverse fast shocks, forward slow shocks, and reverse slow shocks.
M. Yan, L. C. Lee
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Nonlinear oblique interaction of interplanetary tangential discontinuities with magnetogasdynamic shocks

Journal of Geophysical Research, 1975
The nonlinear oblique interaction between a plane tangential discontinuity (TD) and a plane fast magnetogasdynamic shock is treated generally and then applied to the interplanetary TD-bow shock interaction. A number of similarity relations are found for the general problem.
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Interplanetary discontinuities: Temporal variations and the radial gradient from 1 to 8.5 AU

Journal of Geophysical Research: Space Physics, 1979
Interplanetary discontinuities have been investigated at heliocentric distances between 1 and 8.5 AU by using Pioneer 10 and 11 vector helium magnetometer observations. The principal purpose of the study was to investigate a possible dependence of the rate of occurrence and properties of the discontinuities on radial distance. This objective required a
Bruce T. Tsurutani, Edward J. Smith
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Interplanetary Discontinuities and Shocks in the Earth’s Magnetosheath

2005
The study of the propagation of interplanetary disturbances, shocks and discontinuities, through the magnetosheath is critical to improve our understanding of the Sun-Earth connected system. In this paper, the current status of both theoretical and observational studies in this crucial area is reviewed separately for interplanetary shocks and ...
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The Plasma and Magnetic Field Characteristics of a Double Discontinuity in Interplanetary Space

Solar Physics, 2007
A double discontinuity is a rarely observed compound structure composed of a slow shock layer and an adjoining rotational discontinuity layer in the downstream region. In this paper, we report the observations of a double discontinuity detected by Wind on May 15, 1997.
P. B. Zuo, X. S. Feng
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