38. Subsurface Structure of Pores and Sunspots

Contributed by Robert Stein. Posted on May 12, 2015

Numerical simulation of sunspots indicate that different subsurface structures are possible. They may be deep coherent flux tubes or twisted spaghetti or shallow structures. It may well be that all the models proposed for sunspot structures are correct for some spot somewhere.

36. Application of Mutual Information Methods in Time-Distance Helioseismology

Contributed by Dustin Keys. Posted on February 18, 2015

What could be common between solar atmosphere and information exchange in communicating systems? Well, this is all about how information is transferred from point A to point B. This work represents a proof-of-concept application of methods of mutual information (MI) to helioseismology.