INVESTIGADORES
MANDRINI Cristina Hemilse
artículos
Título:
Evidence for the interaction of large scale magnetic structures in solar flares
Autor/es:
MANDRINI, C.H.; DÉMOULIN, P.; HÉNOUX, J.C.; MACHADO, M.E.
Revista:
ASTRONOMY AND ASTROPHYSICS
Editorial:
Springer Verlag
Referencias:
Año: 1991 vol. 250 p. 541 - 547
ISSN:
0004-6361
Resumen:
By modeling the observed vertical magnetic field of an active region AR
2372 by the potential field of an ensemble of magnetic dipoles, the
likely location of the separatrices, surfaces that separates cells of
different field line connectivities, and of the separator which is the
intersection of the separatrices, is derived. Four of the five off-band
H-alpha kernels of a flare that occurred less than 20 minutes before
obtaining the magnetogram are shown to have taken place near or at the
separatrices. These H-alpha kernels are connected by field lines that
pass near the separator. This indicates that the flare may have resulted
from the interaction in the separator region of large scale magnetic
structures.