Polar Plume Brightening During the 2006 March 29 Total Eclipse

Details Polar Plume Brightening During the 2006 March 29 Total Eclipse Polar Plume Brightening During the 2006 March 29 Total Eclipse

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008apj...682..638p&link_type=abstract

The Astrophysical Journal, Volume 682, Issue 1, pp. 638-643.

Astronomy and Astrophysics

Astronomy

12

Sun: Atmospheric Motions, Sun: Corona, Eclipses

Scientific paper

We discuss a remarkable brightening in a polar plume, as inferred from unique coordinated observations of the white-light corona during the total eclipse of the Sun of 2006 March 29. The polar plume (also known as a polar ray, with distinctions that we discuss) was observed at the positional angle of 9° the velocity at which the brightening propagated was about 65 km s-1, which is close to the values derived by modeling of mass/energy transfer in polar plumes/rays as well as to those acquired from images from the Extreme-ultraviolet Imaging Telescope on the European Space Agency/NASA Solar and Heliospheric Observatory (SOHO/EIT). Comparing our data with those from the SOHO/LASCO C2 coronagraph, we estimate the lifetime of the polar ray to be less than 24 hr.

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