Georgia State opens South Pole Solar Observatory in Antarctica


Credit: Georgia State University

ATLANTA–Dr. Stuart Jefferies, professor in the Department of Physics and Astronomy at Georgia State University, will lead a multi-institutional team in opening the South Pole Solar Observatory in Antarctica and installing and operating instruments that will record high-resolution images of the Sun.

The project, sponsored by the National Science Foundation's Division of Polar Programs, will begin in December.

The South Pole Solar Observatory will be 4 kilometers away from the United States Amundsen-Scott South Pole Station in Antarctica. The two instruments being installed will log high-resolution images of the Sun every five seconds at two different heights in its atmosphere.

The goals of the project are to measure and characterize internal gravity waves omnipresent in the Sun's atmosphere, identify the role of these waves in transporting energy and momentum, and use the properties of these waves to provide a mapping of the structure and dynamics of the Sun's atmosphere.

The data will also have applications in several other areas of interest in solar physics, including studying the triggers of space weather events (solar flares and coronal mass ejections) that have direct societal impact, mapping of the Sun's sub-surface structure and dynamics, and investigating the solar coronal heating enigma, a long-standing puzzle of why the temperature of the Sun's atmosphere rises from about 6,000 degrees at its visible surface (the photosphere) to a few million degrees in its outer atmosphere (the corona).

The team will consist of scientists from Georgia State, the NASA Jet Propulsion Laboratory, the University of Rome Tor Vergata, the University of Hawaii and the European Space Agency.


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