Bibcode
de la Rosa, I. G.
Referencia bibliográfica
Solar Physics (ISSN 0038-0938), vol. 103, no. 2, 1986, p. 249-257.
Fecha de publicación:
2
1986
Número de citas
3
Número de citas referidas
3
Descripción
The initial orientation of 74 active regions (ARs) as measured in high
resolution pictures. As previous works by the author (Garcia de la Rosa,
1984) suggest a different behavior between large and small active
regions, the sample has been divided into those two classes, whose
dividing line is roughly set at 5 x 10 to the 21st Mx in the magnetic
flux. It is observed that only the large regions tend to display the
correct inclination (p-part at lower latitude). Their evolution toward a
more parallel inclination to the equator is also observed. The first
finding is interpreted in terms of the primary nature of the large ARs
which are supposed to be directly linked to the basic mechanism of solar
activity. The evolution is interpreted as a reaction of the lower layers
of the tube to the tilt introduced by the Coriolis effect.