Analysis of Polar Plumes Observed During March 29, 2006 Total Solar Eclipse

Details Analysis of Polar Plumes Observed During March 29, 2006 Total Solar Eclipse Analysis of Polar Plumes Observed During March 29, 2006 Total Solar Eclipse

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.9508f&link_type=abstract

American Astronomical Society Meeting 210, #95.08; Bulletin of the American Astronomical Society, Vol. 39, p.224

Astronomy and Astrophysics

Astronomy

Scientific paper

Polar plumes are long lived structures that occur in coronal holes and are thought to be the source region of the slow solar wind. In this poster, we present analysis of polar plumes observed during the March 29, 2006 solar eclipse from Cape Coast, Ghana. We have analyzed SOHO/EIT data of the same time and date of the eclipse to determine how the EUV intensity varies as a function of height. We have developed a steady-state one dimensional hydrodynamic model of plumes that includes a stratified heating rate, area expansion, and a non-zero velocity at the plume base. We have compared the intensity profiles from the model calculated for different heating rates and base velocities with the intensity profiles of the observed plumes. We present the results of our model and the analysis and make a conjecture about the mass contribution of plumes to the solar wind.

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