Exploring the Physics of Stellar Surfaces

Dr. S. H. Saar
Harvard /CfA



In spite of the fact that nearly all stars are observed to be mere point sources of light, there is a remarkable amount of information about their physical properties and processes which we can determine. I will focus in particular on what we have learned about stellar surface structure, how this is done, and what the results imply about the underlying processes. Most of what we see on stellar surfaces can be understood based on some combination of rotation, convection and magnetic fields in the ambient plasma.



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