INTRODUCTION
Moving Magnetic Features (MMFs) are regarded as small magnetic elements which
are carried away from the sunspot to the periphery by plasma flows
(Vrabec 1971; Harvey and Harvey 1973; Muller and Mena 1987; Brickhouse
and LaBonte 1988; Lee 1992).
There are two kinds of MMFs: unipolar and
mixed polarity, i.e. bipolar (Harvey and Harvey 1973; Zhang et al.
1992).
©BBSO/NJIT Seminar on OCT 99, 2000