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What is New on the Sun?A fundamental property of the Sun's corona is that it is violently dynamic. The most spectacular and most energetic manifestations of this activity are the giant magnetic disruptions that give rise to coronal mass ejections (CME) and eruptive flares. These major events are of critical importance, because they drive the most destructive forms of space weather at Earth and in the solar system, and they provide a unique opportunity to study, in revealing detail, the interaction of magnetic field and matter, in particular, magnetohydrodynamic instability and nonequilibrium - processes that are at the heart of laboratory and astrophysical plasma physics. Recent observations by a number of NASA space missions have given us new insights into the physical mechanisms that underlie coronal explosions. Furthermore, massively-parallel computations have now allowed us to calculate fully three-dimensional models for the Sun's activity. In this talk I will review some of the latest observations of the Sun, including those from the just-launched Hinode and STEREO mission, and discuss recent advances in the theory and modeling of explosive solar activity.
Document ID
20110008594
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Antiochos, Spiro K. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 25, 2013
Publication Date
April 18, 2009
Subject Category
Solar Physics
Meeting Information
Meeting: What is New on the Sun?
Location: Palo Alto, CA
Country: United States
Start Date: April 18, 2009
End Date: April 19, 2009
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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