Owens, Mathew J. and Robert J. Forsyth, The Heliospheric Magnetic Field, Living Reviews in Solar Physics, 10, 5 (2013) (ADS)
(click on the image for a larger version)
As the Sun rotates, and the solar wind streams almost radially outwards,
the field wraps up into the
"Parker spiral".
But wind originating at higher latitudes tends to form spirals wrapped
on cones, as illustrated neatly here.
Of course, things in the solar wind are not so simple owing to the
variable magnetic structures in the low corona, plus
interactions these variations
may induce physically.
As the Sun rotates, and the solar wind streams almost radially outwards, the field wraps up into the "Parker spiral". But wind originating at higher latitudes tends to form spirals wrapped on cones, as illustrated neatly here. Of course, things in the solar wind are not so simple owing to the variable magnetic structures in the low corona, plus interactions these variations may induce physically.