IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Study of magnetic flux emergence and related activity in active region NOAA 10314.
Autor/es:
M. POISSON; M. LÓPEZ FUENTES; C. H. MANDRINI
Lugar:
Puntarenas
Reunión:
Congreso; IX COLAGE; 2011
Resumen:
We study the emergence of AR NOAA 10314, observed on the solar disk during March 13-19, 2003. This extremely complex AR is of particular interest for being the source of two major (X class) flares and several other energetic events along a few days. Using SOHO/MDI magnetograms we follow the evolution of the photospheric magnetic flux to infer the morphology of the structure that originates the AR. Combining these observations with coronal data from SOHO/EIT, we analyze the detailed relation between the production of flares and the photospheric evolution during the magnetic structure emergence. We determine the tilt angle variation for the δ-spot and find a counter-clockwise rotation corresponding to a positive writhed flux tube.