Using the SIT (Suprathermal Ion Telescope) instrument on STEREO-A we have examined the abundance of the rare isotope during the rising activity phase of solar cycle 24 between January 2010 and December 2011. We have identified six solar energetic particle (SEP) events with enormous abundance enhancements of . The events were short lasting, typically ∼ 0.5 - 1 day and most of them occurred in association with high-speed solar wind streams and corotating interaction regions. With one exception the events were not associated with ∼ 100 keV solar electron intensity increases. The events showed also enhanced NeS/O and Fe/O ratios. The solar images indicate that the events were generally associated with the active regions located near a coronal hole.
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13 June 2013
SOLAR WIND 13: Proceedings of the Thirteenth International Solar Wind Conference
17–22 June 2012
Big Island, Hawaii
Research Article|
June 13 2013
-rich SEP events observed by STEREO-A
R. Bućík;
R. Bućík
Max-Planck-Institut für Sonnensystemforschung, Max-Planck-Str. 2, 37191 Katlenburg-Lindau,
Germany
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U. Mall;
U. Mall
Max-Planck-Institut für Sonnensystemforschung, Max-Planck-Str. 2, 37191 Katlenburg-Lindau,
Germany
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A. Korth;
A. Korth
Max-Planck-Institut für Sonnensystemforschung, Max-Planck-Str. 2, 37191 Katlenburg-Lindau,
Germany
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G. M. Mason;
G. M. Mason
Applied Physics Laboratory, Johns Hopkins University, Laurel, MD 20723,
USA
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R. Gómez-Herrero
R. Gómez-Herrero
Space Research Group, University of Alcalá, 28871 Alcalá de Henares,
Spain
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R. Bućík
U. Mall
A. Korth
G. M. Mason
R. Gómez-Herrero
Max-Planck-Institut für Sonnensystemforschung, Max-Planck-Str. 2, 37191 Katlenburg-Lindau,
Germany
AIP Conf. Proc. 1539, 139–142 (2013)
Citation
R. Bućík, U. Mall, A. Korth, G. M. Mason, R. Gómez-Herrero; -rich SEP events observed by STEREO-A. AIP Conf. Proc. 13 June 2013; 1539 (1): 139–142. https://doi.org/10.1063/1.4811007
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