The Riddles of the 2011 November 3 Circumsolar SEP Event and Limited Knowledge of the Coronal Magnetic Field
Abstract
The 2011 November 3 SEP event was observed at all the three locations of STEREO A and B and L1 within 40 minutes of the onset of the eruption that is thought to be the single cause (Gomez-Herrero et al. 2015). The CME was fast, but not extremely fast ( 1000 km/s), and the associated flare was estimated to be only X1. The source region at E152 was best connected to STEREO-A, but was poorly connected to STEREO-B and L1. AIA/EUVI images suggest that the EUV wave from the eruption did not reach the footpoints of magnetic field lines from STEREO-B or L1. We suggest instead that particles were released as the coronal disturbances in the form of an EUV wave intersected field lines from the south polar region. We discuss how such a scenario could be possible, given the level of our knowledge of the coronal magnetic field at present.
- Publication:
-
Solar Heliospheric and INterplanetary Environment (SHINE 2016)
- Pub Date:
- July 2016
- Bibcode:
- 2016shin.confE..25N