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Abstract:

Active regions (ARs), involved in the Halloween events during October-November 2003, were the source of unusual activity during the following solar rotation. The flares on 18-20 November 2003 that occur in the AR NOAA10501 were accompanied by coronal mass ejections associated to some particularly geoeffective magnetic clouds. Our analysis of the magnetic flux and helicity injection revealed that a new emerging bipole and consequent shearing motions continuously energized the region during its disk passage. The stored energy was eventually released through the interaction of the various systems of magnetic loops by several magnetic reconnection events. Active events on November 18 (filament eruptions and CMEs) were originated by shearing motions along a section of the filament channel that injected magnetic helicity with sign opposite to that of the AR. Two homologous flares, that occurred on November 20, were apparently triggered by different mechanisms as inferred from the flare ribbons evolution (filament eruption and CMEs). We studied in detail the behaviour of two North-South oriented filaments on November 20 2003. They merged and split following a process suggestive of 'sling-shot' reconnection between two coronal flux ropes. We successfully tested this scenario in a 3D MHD simulation that is presented in this paper. © International Astronomical Union 2011.

Registro:

Documento: Artículo
Título:Solar activity due to magnetic complexity of active regions
Autor:Schmieder, B.; Mandrini, C.; Chandra, R.; Démoulin, P.; Török, T.; Pariat, E.; Uddin, W.
Filiación:Observatoire de Paris, LESIA, Meudon, 92195, France
IAFE, CONICET-UBA (FCEN), Buenos Aires, Argentina
ARIES, Nainital, India
Palabras clave:Active region; Filament reconnection; Magnetic helicity
Año:2010
Volumen:6
Número:S273
Página de inicio:164
Página de fin:168
DOI: http://dx.doi.org/10.1017/S1743921311015183
Título revista:Proceedings of the International Astronomical Union
Título revista abreviado:Proc. Int. Astron. Union
ISSN:17439213
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_17439213_v6_nS273_p164_Schmieder.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17439213_v6_nS273_p164_Schmieder

Referencias:

  • Antiochos, S.K., (1998) Astrophys. J. Lett., 502, p. 181
  • Chandra, R., Pariat, E., Schmieder, B., Mandrini, C.H., Uddin, W., (2010) Solar Phys., 261, p. 127
  • Chandra, R., Schmieder, B., Mandrini, C.H., Démoulin, P., Pariat, E., Török, T., Uddin, W., (2010) Solar Phys, , Submitted
  • (2000) JGR, 105, p. 23153. , Forbes T. G
  • Gopalswamy, N., Yashiro, S., Michalek, G., Xie, H., Lepping, H., Howard, R.A., (2005) GRL, 32, p. 12
  • Linton, M.G., Dahlburg, R.B., Antiochos, S.K., (2001) Astrophys. J., 553, p. 905
  • Moore, R.L., Sterling, A.C., Hudson, H.S., Lemen, J.R., (2001) Astrophys. J., 552, p. 833
  • Möstl, C., Miklenic, C., Farrugia, C.J., Temmer, M., Veronig, A.M., Galvin, A., Vrsnak, B., Biernat, H.K., (2008) Ann. Geophys, 26, p. 3139
  • Pariat, E., Nindos, A., Démoulin, P., Berger, M.A., (2006) Astron. Astrophys, 452, p. 623
  • Srivastava, N., Mathew, S.K., Louis, R.E., Wiegelmann, T., (2009) JGR, 114, p. 3107
  • Titov, V.S., Démoulin, P., (1999) Astron. Astrophys, 351, p. 707
  • Török, T., Chandra, R., Démoulin, P., Schmieder, B., Aulanier, G., Pariat, E., Mandrini, C.H., (2010) Astrophys. J, , Submitted
  • Yurchyshyn, V., Hu, Q., Abramenko, V., (2005) Space Weather, 3, p. 8

Citas:

---------- APA ----------
Schmieder, B., Mandrini, C., Chandra, R., Démoulin, P., Török, T., Pariat, E. & Uddin, W. (2010) . Solar activity due to magnetic complexity of active regions. Proceedings of the International Astronomical Union, 6(S273), 164-168.
http://dx.doi.org/10.1017/S1743921311015183
---------- CHICAGO ----------
Schmieder, B., Mandrini, C., Chandra, R., Démoulin, P., Török, T., Pariat, E., et al. "Solar activity due to magnetic complexity of active regions" . Proceedings of the International Astronomical Union 6, no. S273 (2010) : 164-168.
http://dx.doi.org/10.1017/S1743921311015183
---------- MLA ----------
Schmieder, B., Mandrini, C., Chandra, R., Démoulin, P., Török, T., Pariat, E., et al. "Solar activity due to magnetic complexity of active regions" . Proceedings of the International Astronomical Union, vol. 6, no. S273, 2010, pp. 164-168.
http://dx.doi.org/10.1017/S1743921311015183
---------- VANCOUVER ----------
Schmieder, B., Mandrini, C., Chandra, R., Démoulin, P., Török, T., Pariat, E., et al. Solar activity due to magnetic complexity of active regions. Proc. Int. Astron. Union. 2010;6(S273):164-168.
http://dx.doi.org/10.1017/S1743921311015183