A Collaborative National Center for Fusion & Plasma Research
September 21, 2015, 4:00pm to 5:30pm

MBG Auditorium

COLLOQUIUM: Toward a Better Understanding of the Solar Atmosphere: Combining Observations and Numerical Modeling

Dr. Bart De Pontieu
Solar and Astrophysics Laboratory, Lockheed Martin, Inc.

The study of the Sun, our nearest star, is making rapid progress, through a combination of a host of new space-based and ground-based observatories coming online and major advances in numerical simulations that incorporate increasingly complex physical mechanisms. I will provide an overview of some recent exciting discoveries that highlight the synergy between numerical modeling and observations with the  Interface Region Imaging Spectrograph (IRIS), Solar Dynamics Observatory (SDO) and Hinode spacecraft. Some of the topics I will discuss include: 1. recent advances in understanding the dominant heating mechanism(s) of the solar atmosphere focusing on dissipation of Alfven waves, as well as the presence of non-thermal particles in small heating events resulting from magnetic reconnection; 2. heating and reconnection in the partially ionized chromosphere; 3. the origin of the slow solar wind; 4. the global nature and long-distance connections governing the instability of the solar atmosphere and driving eruptions such as coronal mass ejections.

Colloquium Committee: 

The Princeton Plasma Physics Laboratory 2019-2020 Colloquium Committee is comprised of the following people. Please feel free to contact them by e-mail regarding any possible speakers or topics for future colloquia.

Carol Ann Austin, caustin@pppl.gov
Marc-Andre DeLooz, mdelooz@pppl.gov
Erik Gilson, egilson@pppl.gov
Jessica Ilagan, jilagan@pppl.gov
Igor Kaganovich, ikaganov@pppl.gov

  • Carol Ann Austin 609-243-2484

U.S. Department of Energy
Princeton Plasma Physics Laboratory is a U.S. Department of Energy national laboratory managed by Princeton University.

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