Constraints on Solar Wind Acceleration Mechanisms from Ulysses Plasma Observations : The First Polar Pass
- Author
- Phillips, John L.
- Published
- Dec. 01, 1995.
- Physical Description
- 1 electronic document
- Additional Creators
- Gazis, Paul R. and Barnes, Aaron
Online Version
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- Restrictions on Access
- Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access - Summary
- The mass flux density and velocity of the solar wind at polar latitudes can provide strong constraints on solar wind acceleration mechanisms. We use plasma observations from the first polar passage of the Ulysses spacecraft to investigate this question. We find that the mass flux density and velocity are too high to reconcile with acceleration of the solar wind by classical thermal conduction alone. Therefore acceleration of the high-speed must involve extended deposition of energy by some other mechanism, either as heat or as a direct effective pressure, due possibly to waves and/or turbulence, or completely non-classical heat transport.
- Other Subject(s)
- Collection
- NASA Technical Reports Server (NTRS) Collection.
- Note
- Document ID: 19980018649.
NASA/TM-95-207201.
NAS 1.15:207201.
Paper-95GL03532.
Geophysical Research Letters(ISSN 0094-8534); Volume 22; No. 23; 3309-3311. - Terms of Use and Reproduction
- Copyright, Distribution as joint owner in the copyright.
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