Evolution of a very complex active region during the decay phase of Cycle 23

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We study the emergence and evolution of AR NOAA 10314, observed on the solar disk during March 13-19, 2003. This extremely complex AR is of particular interest due to its unusual magnetic flux distribution and the clear rotation of the polarities of a d-spot within the AR. Using SOHO/MDI magnetogram...

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Autores principales:	Poisson, M., Fuentes, M.L., Mandrini, C.H., Démoulin, P., Pariat, E.
Formato:	Artículo publishedVersion
Publicado:	2011
Materias:	Sun: magnetic fields Sun: photosphere
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_17439213_v7_nS286_p246_Poisson https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_17439213_v7_nS286_p246_Poisson_oai
Aporte de:	Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires

id	I28-R145-paper_17439213_v7_nS286_p246_Poisson_oai
record_format	dspace
spelling	I28-R145-paper_17439213_v7_nS286_p246_Poisson_oai2024-08-16 Poisson, M. Fuentes, M.L. Mandrini, C.H. Démoulin, P. Pariat, E. 2011 We study the emergence and evolution of AR NOAA 10314, observed on the solar disk during March 13-19, 2003. This extremely complex AR is of particular interest due to its unusual magnetic flux distribution and the clear rotation of the polarities of a d-spot within the AR. Using SOHO/MDI magnetograms we follow the evolution of the photospheric magnetic flux to infer the morphology of the structure that originates the AR. We determine the tilt angle variation for the d-spot and find a counter-clockwise rotation corresponding to a positive writhed flux tube. We compute the magnetic helicity injection and the total accumulated helicity in the AR and find a correlation with the observed rotation. © 2012 International Astronomical Union. Fil:Poisson, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mandrini, C.H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_17439213_v7_nS286_p246_Poisson info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Proc. Int. Astron. Union 2011;7(S286):246-249 Sun: magnetic fields Sun: photosphere Evolution of a very complex active region during the decay phase of Cycle 23 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_17439213_v7_nS286_p246_Poisson_oai
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-145
collection	Repositorio Digital de la Universidad de Buenos Aires (UBA)
topic	Sun: magnetic fields Sun: photosphere
spellingShingle	Sun: magnetic fields Sun: photosphere Poisson, M. Fuentes, M.L. Mandrini, C.H. Démoulin, P. Pariat, E. Evolution of a very complex active region during the decay phase of Cycle 23
topic_facet	Sun: magnetic fields Sun: photosphere
description	We study the emergence and evolution of AR NOAA 10314, observed on the solar disk during March 13-19, 2003. This extremely complex AR is of particular interest due to its unusual magnetic flux distribution and the clear rotation of the polarities of a d-spot within the AR. Using SOHO/MDI magnetograms we follow the evolution of the photospheric magnetic flux to infer the morphology of the structure that originates the AR. We determine the tilt angle variation for the d-spot and find a counter-clockwise rotation corresponding to a positive writhed flux tube. We compute the magnetic helicity injection and the total accumulated helicity in the AR and find a correlation with the observed rotation. © 2012 International Astronomical Union.
format	Artículo Artículo publishedVersion
author	Poisson, M. Fuentes, M.L. Mandrini, C.H. Démoulin, P. Pariat, E.
author_facet	Poisson, M. Fuentes, M.L. Mandrini, C.H. Démoulin, P. Pariat, E.
author_sort	Poisson, M.
title	Evolution of a very complex active region during the decay phase of Cycle 23
title_short	Evolution of a very complex active region during the decay phase of Cycle 23
title_full	Evolution of a very complex active region during the decay phase of Cycle 23
title_fullStr	Evolution of a very complex active region during the decay phase of Cycle 23
title_full_unstemmed	Evolution of a very complex active region during the decay phase of Cycle 23
title_sort	evolution of a very complex active region during the decay phase of cycle 23
publishDate	2011
url	http://hdl.handle.net/20.500.12110/paper_17439213_v7_nS286_p246_Poisson https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_17439213_v7_nS286_p246_Poisson_oai
work_keys_str_mv	AT poissonm evolutionofaverycomplexactiveregionduringthedecayphaseofcycle23 AT fuentesml evolutionofaverycomplexactiveregionduringthedecayphaseofcycle23 AT mandrinich evolutionofaverycomplexactiveregionduringthedecayphaseofcycle23 AT demoulinp evolutionofaverycomplexactiveregionduringthedecayphaseofcycle23 AT pariate evolutionofaverycomplexactiveregionduringthedecayphaseofcycle23
_version_	1809356933987041280

Evolution of a very complex active region during the decay phase of Cycle 23

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