Reconstructing the 3D Morphology of the 17 May 2008 CME |
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| Authors: | B E Wood R A Howard A Thernisien S P Plunkett D G Socker |
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| Institution: | 1. Naval Research Laboratory, Space Science Division, Washington, DC, 20375, USA
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| Abstract: | We model the kinematics and three-dimensional distribution of mass in a coronal mass ejection (CME) observed on 17 May 2008, using a comprehensive analysis of STEREO images of the CME. The CME is a surprisingly fast one for solar minimum, reaching velocities of up to 1120 km?s?1. It can be followed continuously from inception all the way out to 1 AU. We find that the appearance of the CME can be modeled reasonably well as a combination of two distinct fronts that expand outward in a self-similar fashion. The model implies that STEREO-B is struck by the weaker of these two fronts on 19 May, and the in situ instruments on STEREO-B do see a weak density and magnetic field enhancement at the expected time. |
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