Plasma Signatures of Radial Field Power Dropouts

Conference · Sun Oct 04 00:00:00 EDT 1998

OSTI ID:758923

Lucek, E A; Horbury, T S; Balogh, A; McComas, D J

A class of small scale structures, with a near-radial magnetic field and a drop in magnetic field fluctuation power, have recently been identified in the polar solar wind. An earlier study of 24 events, each lasting for 6 hours or more, identified no clear plasma signature. In an extension of that work, radial intervals lasting for 4 hours or more (89 in total), have been used to search for a statistically significant plasma signature. It was found that, despite considerable variations between intervals, there was a small but significant drop, on average, in plasma temperature, density and {beta} during these events.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 758923
• Report Number(s): LA-UR-99-1375; TRN: US0004431
• Resource Relation: Conference: Solar Wind 9, Boston, MA (US), 10/04/1998--10/09/1998; Other Information: PBD: 4 Oct 1998
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
MAGNETIC FIELDS
SOLAR WIND
VARIATIONS
MORPHOLOGY
PLASMA RADIAL PROFILES
BETA RATIO