- MMF bipoles are not randomly
oriented. In 21 out of 28 (75%) MMFs pairs, the magnetic element with
the sunspot's polarity is located farther from the sunspot and a bipole
is rotated counter-clockwise when the sunspot have positive helicity,
and vice versa.
- There seems to be a link between amount of
rotation of the MMFs bipole, and amount of twist in the sunspot
. Bipoles around the sunspot with strong twist oriented nearly
perpendicular to the sunspot radius, while bipoles of slightly twisted
sunspot are oriented mostly parallel to the radius.
- The magnetic element of the same polarity as
the sunspot comes out first, and the magnetic element of the
opposite polarity appears second to form the MMFs bipolar pair.
- The majority of MMFs pairs consist of a stronger and compact magnetic element with the
polarity of the sunspot, and a weaker and
diffuse magnetic element of opposite polarity.
©BBSO/NJIT Seminar on OCT 99, 2000