The structure of global solar magnetic fields
Structure and Dynamics of Magnetic Fields in the Sun, Solar System and Beyond
Ben Williams
University of St Andrews
Clare Parnell (University of St Andrews)
It has long been known that the magnetic field structures on the Sun are highly complex. By determining the skeleton of global magnetic fields extrapolated from high-resolution observed magnetograms it is now possible to characterise the complexity of these fields. Here, we will discuss the evolution of the global complexity on both short (days) and long (solar cycle) time-scales. In particular, highlighting how changes in the numbers/strengths of sunspots or the strength of the polar fields influences the distribution of null points, separators and the location of streamers and pseudo-streamers.


09:00 - 10:30
EX - LT1 (100)