He was able to show that these Alfv\'en boundaries occured primarily in the region of dipolar magnetic fields, which are nearly invariant for all magnetic field models tested, so that the technique was only sensitive to details of the electric field model.
(He; was; able to show that these Alfv\'en boundaries occured primarily in the region of dipolar magnetic fields) (the technique; was; only sensitive to details of the electric field model) (He; to show; that these Alfv\'en boundaries occured primarily in the region of dipolar magnetic fields) Context(He to show,List([0, 19))):(these Alfv\'en boundaries; occured; L:primarily in the region of dipolar magnetic fields) (dipolar magnetic fields; are; nearly invariant for all magnetic field models) (all magnetic field models; tested; )
He to show,List([0, 19))
He the technique He these Alfv\'en boundaries dipolar magnetic fields all magnetic field models
was was to show occured are tested
able to show that these Alfv\'en boundaries occured primarily in the region of dipolar magnetic fields
only sensitive to details of the electric field model
that these Alfv\'en boundaries occured primarily in the region of dipolar magnetic fields
L:primarily in the region of dipolar magnetic fields
nearly invariant for all magnetic field models