IAFE 05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
artículos
Título:
Study of magnetic flux emergence and related activity in active region NOAA 10314
Autor/es:
M. POISSON; M. C. LÓPEZ FUENTES; C. H. MANDRINI; P. DÉMOULIN; E. PARIAT
Revista:
ADVANCES IN SPACE RESEARCH
Editorial:
ELSEVIER SCI LTD
Referencias:
Lugar: Amsterdam; Año: 2013 vol. 51 p. 1834 - 1841
ISSN:
0273-1177
Resumen:
We study the extremely complex active region (AR) NOAA 10314, that was observed from March 13?19, 2003. This AR was thesource of several energetic events, among them two major (X class) flares, along a few days. We follow the evolution of this AR sincethe very first stages of its emergence. From the photospheric evolution of the magnetic polarities observed with SOHO/MDI we infer themorphology of the flux tube that originates the AR. Using a computation technique that combines Local Correlation Tracking withmagnetic induction constrains, we compute the rate of magnetic helicity injection at the photosphere during the observed evolution.From our results we conclude that the AR originated by the emergence of a severely deformed magnetic flux tube having a dominantlypositive magnetic helicity.
