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Reconstructing the 3-D Trajectories of CMEs in the Inner Heliosphere View all abstracts by submitter

Shane A Maloney   Submitted: 2009-05-21 10:09

A method for the full three-dimensional (3-D) reconstruction of the trajectories of coronal mass ejections (CMEs) using Solar TErrestrial RElations Observatory (STEREO) data is presented. Four CMEs that were simultaneously observed by the inner and outer coronagraphs (COR1 and 2) of the Ahead and Behind STEREO satellites were analysed. These observations were used to derive CME trajectories in 3-D out to ∼15Rsun. The reconstructions using COR1/2 data support a radial propagation model. Assuming pseudo-radial propagation at large distances from the Sun (15 ? 240Rsun), the CME positions were extrapolated into the Heliospheric Imager (HI) field-of-view. We estimated the CME velocities in the different fields-of-view. It was found that CMEs slower than the solar wind were accelerated, while CMEs faster than the solar wind were decelerated, with both tending to the solar wind velocity.

Authors: Shane A. Maloney, Peter T. Gallagher, R.T. James McAteer
Projects: STEREO

Publication Status: Solar Physics (Published Online)
Last Modified: 2009-05-12 07:28
Go to main E-Print page  Radiative transfer in cylindrical threads with incident radiation VI. A hydrogen plus helium system  The Relation between EIT Waves and Coronal Mass Ejections  Edit Entry  Download Preprint  Delete Entry 

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