Determination of constant α forcefree solar magnetic fields from magnetograph data
Abstract
At first it is shown that a magnetic field being forcefree, i.e. satisfying ▽ × B = αB, with α = constant (α ≠ 0) in the whole exterior of the Sun cannot have a finite energy content and cannot be determined uniquely from only one magnetic field component given at the photosphere. Then the boundary value problem for a semiinfinite column of arbitrary cross section is solved by a Green's function method.
 Publication:

Solar Physics
 Pub Date:
 July 1978
 DOI:
 10.1007/BF00157267
 Bibcode:
 1978SoPh...58..215S
 Keywords:

 Boundary Value Problems;
 Data Reduction;
 ForceFree Magnetic Fields;
 Magnetometers;
 Solar Magnetic Field;
 Green'S Functions;
 Hankel Functions;
 Lorentz Force;
 Photosphere;
 Solar Physics;
 Solar Physics;
 Magnetic Fields:Solar Atmosphere;
 Solar Magnetic Fields