Plasma Physics Colloquium
Time：April.9. 15:00-16:30
Title：The million-degree solar corona: How can it get so hot?
Speaker：Chung-Sang Ng, University of New Hampshire, Durham,
Place：Building 12 Room 201
Abstract:
The solar corona is basically the atmosphere of the sun, only that it is made out of plasma (hightemperature ionized gas). One of the greatest mysteries in solar physics is how the solar corona can be heated up to millions of degrees (Kelvins) while the photosphere (surface of the sun) is only about six thousands degrees. Since the photosphere is much denser than the corona, its fluid motion carries enough free energy to account for the heating rate. The problem becomes how to convert the free energy of the photosphere to heat the corona. Over the years, there have been many coronal heating theories. Many of them make use of the observed magnetic field as a medium for such energy conversion. In this talk, I will give a brief introduction of this problem, and describe some results from our theoretical investigation of this problem.
You are welcome!
Institute of fusion Theory and Simulation
April 1, 2008
Time：April.9. 15:00-16:30
Title：The million-degree solar corona: How can it get so hot?
Speaker：Chung-Sang Ng, University of New Hampshire, Durham,
Place：Building 12 Room 201
Abstract:
The solar corona is basically the atmosphere of the sun, only that it is made out of plasma (hightemperature ionized gas). One of the greatest mysteries in solar physics is how the solar corona can be heated up to millions of degrees (Kelvins) while the photosphere (surface of the sun) is only about six thousands degrees. Since the photosphere is much denser than the corona, its fluid motion carries enough free energy to account for the heating rate. The problem becomes how to convert the free energy of the photosphere to heat the corona. Over the years, there have been many coronal heating theories. Many of them make use of the observed magnetic field as a medium for such energy conversion. In this talk, I will give a brief introduction of this problem, and describe some results from our theoretical investigation of this problem.
You are welcome!
Institute of fusion Theory and Simulation
April 1, 2008
