How to do 3D reconstruction of CMEs

 

Speaker: Marilena Mierla

Abstract:

In this seminar I will present various 3D reconstruction methods for coronal mass ejections (CMEs).

The most popular one is triangulation (Inhester 2006), using view directions from two spacecraft. The method consists in identifying the same object in a pair of images, by calculating the lines of sight that belong to the respective pixels in the image and back-tracking them into the 3D space.

The forward  modelling technique consist in changing the parameters of a geometrical flux-rope-like model (Thernisien et al., 2006) until best fits the data.

The third method described here is polarisation ratio (Moran and Davila 2004) based on Thomson scattering properties.

The IDL programs to apply these techniques to the data are also presented.

Date: 17 October 2014

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