INVESTIGADORES
MANDRINI Cristina Hemilse
congresos y reuniones científicas
Título:
Actors of the main activity of large complex centers during the 23 solar cycle maximum
Autor/es:
SCHMIEDER, B.; CHANDRA, R.; DÉMOULIN, P.; MANDRINI, C.H.; VENKATAKRISHNAN, P.; MANOHARAN, P.K.; UDDIN, W.; PARIAT, E.; TOROK, T.; MOLODIJ, G.; KUMAR, P.
Lugar:
Bremen
Reunión:
Congreso; 38th COSPAR Scientific Assembly; 2010
Institución organizadora:
Committee on Space Research
Resumen:
During the maximum of the last Solar Cycle solar cycle 23, large active
regions had a long life spanning several solar rotations and produced a
large number of X-ray class flares, CMEs and Magnetic clouds (MC). This
was the case for the Halloween active regions in 2003. The most
geoeffective magnetic cloud of the cycle (Dst=-457) has its source in
one passage of the active region (NOAA 10501) on November 18, 2003. Such
an activity is presumably due to continuous emerging magnetic flux that
was observed during this passage. Moreover, the region exhibited a
complex topology with multiple domains of distinct magnetic helicities.
The complexity is observed to reach such unprecedented levels that a
detailed multi wavelength analysis is necessary to precisely identify
the sources of CMEs and MCs.