Plasma signatures of radial field power dropouts

Journal Article · Tue Jun 01 00:00:00 EDT 1999 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.58656· OSTI ID:679156

Lucek, E A; Balogh, A ^[1]; Horbury, T S ^[2]; McComas, D J ^[3]

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1. The Blackett Laboratory, Imperial College, London (United Kingdom)
2. Astronomy Unit, Queen Mary and Westfield College, London (United Kingdom)
3. Los Alamos National Laboratory, Los Alamos (United States)

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. {copyright} {ital 1999 American Institute of Physics.}

• Sponsoring Organization: USDOE
• OSTI ID: 679156
• Report Number(s): CONF-9810104-; ISSN 0094-243X; TRN: 99:009350
• Journal Information: AIP Conference Proceedings, Vol. 471, Issue 1; Conference: 9. international conference on solar wind, Nantucket, MA (United States), 5-9 Oct 1998; Other Information: PBD: Jun 1999
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
SOLAR WIND
PLASMA
PLASMA DENSITY
MAGNETIC FIELDS
TEMPERATURE RANGE
BETA RATIO