Interactions of Multiple CMEs with Complex Interplanetary Medium as Revealed by STEREO
Abstract
Since the launch of STEREO in November 2006, continuous white-light observations of solar transients on their way to the Earth have been made possible. STEREO/SECCHI observations have also revealed the complexity and dynamic structure of the interplanetary medium. In this talk, we will discuss the significance of 3-D numerical simulations in the interpretation of observations taken by SECCHI. Our focus will be on a series of two ejections on January, 24-25, 2007, which have been simulated with the Space Weather Modeling Framework (SWMF). We will discuss the appearance of coronal mass ejections (CMEs) and dense streams in the Heliospheric Imagers' field-of-view. Detailed comparisons between the real and simulated time-elongation plots will be presented. We will also discuss how observations of CME-CME interaction can be distinguished from the interaction of CMEs with dense streams in the solar wind using the simulations.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2008
- Bibcode:
- 2008AGUFMSH13B1553L
- Keywords:
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- 2101 Coronal mass ejections (7513);
- 2111 Ejecta;
- driver gases;
- and magnetic clouds;
- 2134 Interplanetary magnetic fields;
- 2139 Interplanetary shocks