Consistent determination of quasi force-free magnetic fields from observations in solar active regions
Received 11 January 1999 / Accepted 10 November 1999
The classical concept of extrapolating the photospheric magnetic field from line-of-sight measurements assuming a pure force-free field is revisited and a new procedure is proposed which is based on:
Orders of magnitude are estimated from observational data and they show that magnetic forces should be actually as large as expected from dimensional analysis.
Key words: Sun: activity Sun: magnetic fields
This article contains no SIMBAD objects.
© European Southern Observatory (ESO) 2000
Online publication: March 28, 2000