On the Toroidal Configuration of Large-Scale Magnetic Flux Ropes
Abstract
We report a comparative study of magnetic field configuration of relatively large-scale flux ropes embedded in interplanetary coronal mass ejections (ICMEs), i.e., that of magnetic clouds. Specifically we employ the Grad-Shafranov (GS) reconstruction technique for a cylindrical as well as a toroidal geometry to derive the cross sections and additionally the overall geometry for the latter in interplanetary space. In particular we examine a handful of events with nearly simultaneous in-situ observations from multiple spacecraft with appropriate separation distances in-between. Such fortuitous but rare occasions provide unique opportunities for the validation of the reconstruction results. This study further provides insight into the alternative configuration of a localized toroidal magnetic flux rope based on in-situ spacecraft measurements. Such a configuration may be especially pertinent to the latest and upcoming in-situ observations of ICMEs close to the Sun.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2019
- Bibcode:
- 2019AGUFMSH43D3356H
- Keywords:
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- 7513 Coronal mass ejections;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMY;
- 7514 Energetic particles;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMY;
- 7536 Solar activity cycle;
- SOLAR PHYSICS;
- ASTROPHYSICS;
- AND ASTRONOMY;
- 7974 Solar effects;
- SPACE WEATHER