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Three-dimensional polarimetric imaging of coronal mass ejections.

Research paper by Thomas G TG Moran, Joseph M JM Davila

Indexed on: 29 May '04Published on: 29 May '04Published in: Science



Abstract

We present three-dimensional reconstructions of coronal mass ejections (CMEs), which were obtained through polarization analysis of single-view images recorded with the use of the Large Angle and Spectrometric Coronagraph (LASCO) C2 coronagraph on board the Solar and Heliospheric Observatory (SOHO) spacecraft. Analysis of a loop-like CME shows a complex three-dimensional structure centered at 40 degrees from the plane of the sky, moving radially at 250 kilometers/second. Reconstruction of two halo CMEs suggests that these events are expanding loop arcades.