SpringerLink
Forum Springer Astron. Astrophys.
Forum Whats New Search Orders


Astron. Astrophys. 339, 610-614 (1998)

Previous Section Next Section Title Page Table of Contents

2. Plasma flows above and below sunspots

Plasma flows around sunspots have been reported by many authors. Zirin & Wang (1989, 1991, 1992) reported inward and downward flows in the umbra and penumbra of sunspots, while Wang & Zirin (1992) report that granules flow toward growing pores. Balthasar et al. (1996) measured velocities at the surface, in the moat, in the penumbra, and in the Evershed flow.

Brekke et al. (1990), and several earlier authors, for example Brueckner (1981), reported downflows above sunspots.

At least four groups have devised methods for observing flows in and around sunspots below the photosphere.

It is the inflow and downflow in sunspots, and the resulting magnetic flux tube, that we are concerned with here.

Previous Section Next Section Title Page Table of Contents

© European Southern Observatory (ESO) 1998

Online publication: October 21, 1998
helpdesk.link@springer.de