MHD-prediction of solar corona at the total eclipse of 2009 July 22

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MHD-prediction of the solar corona at the total solar eclipse of 2009 July 22

Here simulation results using calibrated SOHO/MDI data for CR 2084 are shown. The spatial resolutions, along radial/latitudinal/longitudinal directions, are higher than those of daily MHD simulations and thus eclipse predictions.

This anaglyph image provides stereoscopic 3D view of the coronal field lines derived from the simulation. For visibility, some lines in the far-side (the opposite side to the Earth) are not drawn. You may need cyan(right)-red(left) glasses to view it. In case you do not have the glasses, click here to see monochromatic version.

Left : The coronal brightness, and the coronal base of the open-field coronal hole and closed-field streamer.
Right : Closed field lines in the volume nearby the plain of sky, and the solar-surface boundary magnetic field.
Drawn regions r ≤ 5.0 solar radii.

Close-look version. r ≤ 2.5 solar radii.

Essentially identical to the second plot, except that the P-angle (difference in angle between the Sun's rotational axis and the Earth's) is NOT taken into account, thus the top directs the solar/heliocentric north. Better for comparisons with the usual solar physics observations like SOHO's EITs,C2 and C3.

Other contents will come later when available.

Last modified: Jul. 6, 2009
K. Hayashi