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Published Online May 27, 2004
Science DOI: 10.1126/science.1098937

Reports

Submitted on April 8, 2004
Accepted on May 17, 2004

Three-Dimensional Polarimetric Imaging of Coronal Mass Ejections

Thomas G. Moran 1 Joseph M. Davila 2

1 NASA Goddard Space Flight Center, Code 682.3, Greenbelt, MD 20770, USA; Department of Physics, The Catholic University of America, Washington, DC 20064, USA.
2 NASA Goddard Space Flight Center, Code 682.3, Greenbelt, MD 20770, USA.

We present the first three-dimensional reconstructions of coronal mass ejections (CMEs), which were obtained through polarization analysis of single-view images recorded using the LASCO C2 coronagraph onboard the SOHO spacecraft. Analysis of a loop-like CME shows complex three-dimensional structure centered at 40° from the plane-of-the-sky moving radially at 250 km/s. Reconstruction of two "halo" CMEs suggests that these events are expanding arcades of loops.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)