Mathematics – Logic
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011spd....42.2303t&link_type=abstract
American Astronomical Society, SPD meeting #42, #23.03; Bulletin of the American Astronomical Society, Vol. 43, 2011
Mathematics
Logic
Scientific paper
A sequence of coronal mass ejections was recently observed by the Solar Dynamics Observatory (SDO) on 1 August 2010. The events were closely synchronized with one another, even though some of them occured at rather different locations. Therefore, it is tempting to assume that these events were causally linked with each other. In an attempt to verify this assumption and identify a plausible reason of such a link, we study the topological structure of the source surface potential field that has been computed from the observed photospheric magnetic field at the appropriate time period. For this purpose, we investigate the respective magnetic connectivity in the obtained configuration by calculating and analyzing the distributions of the so-called squashing factor at the boundaries as well as at different cross-sections. This allows us to get a comprehensive understanding of the underlying structural skeleton of the magnetic cofiguration and identify the robust topological features that likely establish the assumed causal link in the indicated events. The obtained topological framework also provides a solid guide for further numerical modeling and analysis of the observational data of these eruptions.
Linker Jon A.
Mikic Zoran
Titov Viacheslav
Torok Tibor
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