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Flow in Thin Streamer Boundaries, Streamer Stalks, and Plumes Between 2 and 10 Solar RadiiSlow solar wind is believed to arise in the legs or near the cusp of streamers, inside the brightness boundary. In an earlier study, we used an analytic model of flow in this layer to analyze the effect of the magnetic field on the geometry of the flow. That study successfully described those conditions that can lead to a decrease of the flow speed with increasing height near the cusp of the closed magnetic helmet inside the streamer. We have generalized that model to describe outflow in an arbitrarily thin layer inside the brightness boundary. The flow geometry now can also be constructive or divergent above the cusp and we show solutions of this type. A diverging streamer or ray above 2-3 solar radii is shown to indicate the plasma beta is greater than unity inside the streamer and less than unity outside. The same argument can be used to discover the height above which the plasma beta in plumes, inside coronal holes, is greater than unity.
Document ID
20050207488
Acquisition Source
Marshall Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Suess, S. T.
Nerney, S.
Date Acquired
August 23, 2013
Publication Date
January 1, 2005
Subject Category
Solar Physics
Meeting Information
Meeting: Solar Wind 11/SOHO 16
Location: Whistler, British Columbia
Country: Canada
Start Date: June 12, 2005
End Date: June 17, 2005
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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