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Observations of Overlying Extreme-ultraviolet Arches confining the eruption of a Filament

Published online by Cambridge University Press:  06 January 2014

Huadong Chen ,
Suli Ma  and
Jun Zhang
Huadong Chen
Affiliation:
College of Science, China University of Petroleum, Qingdao 266580, China email: [email protected] Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
Suli Ma
Affiliation:
College of Science, China University of Petroleum, Qingdao 266580, China email: [email protected]
Jun Zhang
Affiliation:
Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
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Abstract

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Using the multi-wavelength data from AIA/SDO, we report a failed filament eruption, which was associated with an X1.9 flare, but without any distinct CME, coronal dimming or EUV wave. Some magnetic arches above the filament was observed distinctly in EUV channels, especially in 94 Å and 131 Å, before and during the filament eruption. Our results show that the overlying arcades expanded along with the ascent of the filament at first until they reached a projected height of about 49 Mm above the Suns surface, where they stopped. The following filament material was observed to be confined by the stopped EUV arches and not to escape from the Sun. These results support that the overlying arcades play an important role in preventing the filament to erupt outward successfully.

Keywords

Sun: activity — Sun: filamentsprominences — Sun: flares — Sun: UV radiation
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S300: Nature of Prominences and their role in Space Weather , June 2013 , pp. 403 - 404
Copyright
Copyright © International Astronomical Union 2013 

References

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