SOME PROPERTIES OF MMFS


A complete list of all known properties of MMFs was compiled by Ryutova et al. (1998):

  • MMF tend to appear in opposite-polarity pairs. Frequently they are not equally visible.
  • Pairs can emerge anywhere in the moat, but most are near the outer edge of the penumbra.
  • The outer foot moves slightly faster then the inner one.
  • MMFs are oriented radialy and
  • The "inner" foot predominantly shares the sunspot's polarity.
However,
  • MMFs bipoles are randomly oriented (Lee 1992)

©BBSO/NJIT Seminar on OCT 99, 2000