Southward magnetic field in the neutral sheet produced by wavy motions propagating in the dawn-dusk direction

Journal Article · Wed Nov 01 04:00:00 EST 1989 · Geophysical Research Letters (American Geophysical Union); (USA)

DOI:https://doi.org/10.1029/GL016i011p01265· OSTI ID:7188527

Nakagawa, T; Nishida, A ^[1]

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1. Institute of Space and Astronautical Science, Tokyo (JP)

Magnetic field observations by IMP 6 at about 20 R{sub E} tailward from the earth show that magnetic field in the neutral sheet sometimes takes north and south polarities alternately at successive crossings. This can be understood by wavy motion of the neutral sheet that propagates in the dawn-dusk direction in the presence of the dawn-dusk component of the magnetic field. Such wavy motion of the neutral sheet can be generated by the Kelvin-Helmholtz instability if the dawn-dust flow of only several tens of km/s is present. {copyright} American Geophysical Union 1989

• OSTI ID: 7188527
• Journal Information: Geophysical Research Letters (American Geophysical Union); (USA), Journal Name: Geophysical Research Letters (American Geophysical Union); (USA) Vol. 16:11; ISSN 0094-8276; ISSN GPRLA
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
EARTH ATMOSPHERE
EARTH MAGNETOSPHERE
HELMHOLTZ INSTABILITY
INSTABILITY
MAGNETIC FIELDS
MAGNETIC RECONNECTION
MAGNETOTAIL
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
WAVE PROPAGATION