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Recurrent filament eruptions and associated CMEs

Published online by Cambridge University Press:  06 January 2014

Brigitte Schmieder ,
Hebe Cremades ,
Cristina Mandrini ,
Pascal Démoulin  and
Yang Guo
Brigitte Schmieder
Affiliation:
Observatoire de Paris, LESIA, Meudon, 92195, France email: [email protected]
Hebe Cremades
Affiliation:
FRM-UTN, Mendoza, Argentina and CONICET
Cristina Mandrini
Affiliation:
IAFE, UBA-CONICET, Buenos Aires, Argentina
Pascal Démoulin
Affiliation:
Observatoire de Paris, LESIA, Meudon, 92195, France email: [email protected]
Yang Guo
Affiliation:
School of Astronomy and Space Science, Nanjing University, Nanjing, China
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Abstract

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We investigate the violent events in the cluster of two active regions (ARs), NOAA numbers 11121 and 11123, observed on 11 November 2010 by the Solar Dynamics Observatory (SDO). Within one day the magnetic field intensity increased by 70% with the emergence of new groups of bipoles in AR 11123, where three filaments are seen along the complex inversion line. The destabilization of the filaments led to flares and CMEs. The CMEs around 08:24 UT and 17:00 UT are directly related to the partial eruption of one filament in the new AR, as shown by a topology computation and analysis. The other CMEs on this day are due to either other ARs or to the destabilization of the global magnetic configuration of the two ARs. This conclusion can be only reached by using the three eyes of SOHO, STEREO and SDO.

Keywords

Sun: active regionSun:magnetic fieldSun: CMESun: filament
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. 489 - 490
Copyright
Copyright © International Astronomical Union 2013 

References

Mandrini, C., Schmieder, B., Démoulin, P., & Guo, Y. 2013 Solar Physics, in press.Google Scholar