In:
Proceedings of the International Astronomical Union, Cambridge University Press (CUP), Vol. 7, No. S286 ( 2011-10), p. 246-249
Abstract:
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 δ-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 δ-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.
Type of Medium:
Online Resource
ISSN:
1743-9213
,
1743-9221
DOI:
10.1017/S1743921312004929
Language:
English
Publisher:
Cambridge University Press (CUP)
Publication Date:
2011
detail.hit.zdb_id:
2170724-8
SSG:
16,12
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