[IGPP Everyone] Plasma Seminar, Fri. 5/19 1PM, Room 4-330 PAB: "Understanding Turbulent Heating in Space and Astrophysical Plasmas" (G. Howes, U. Iowa)

[Emmanuel V. Masongsong]

​​​​​Dear all, 



We have a plasma seminar this Friday, May 19th at 1PM in Room 4-330 of 
the Physics & Astronomy Building (PAB). Coffee and cookies will be 
available in the room at 12:45. Our speaker is Prof. Gregory Howes of 
the University of Iowa, and his title and abstract are as follows: 


"Understanding Turbulent Heating in Space and Astrophysical Plasmas" 


The flow of energy from the sun, through interplanetary space, to the 
magnetospheres of the Earth and other planets impacts the macroscopic 
evolution of the heliosphere, our home in the universe. Further afield, 
the evolution of many astrophysical environments is strongly influenced 
by the conversion of kinetic and magnetic energy into plasma heat. 
Plasma turbulence plays a key role in this process, mediating the 
conversion of the energy of large-scale fields and flows to plasma heat. 
But our understanding of how turbulence governs energy transport and 
plasma heating remains incomplete, representing a grand challenge 
problem in heliophysics. Further complicating matters is the fact that 
the typically low-density and high-temperature conditions dictate that 
the turbulent dynamics is weakly collisional on the length scales at 
which the turbulent energy is removed, requiring the application of 
kinetic plasma theory to follow the evolution and dissipation of the 
turbulence. Here I will outline the frontier of efforts to understand 
how kinetic turbulence in space and astrophysical plasmas leads to 
plasma heating and particle energization, exploiting a combined approach 
using kinetic plasma theory, supercomputer simulations, spacecraft 
measurements, and even laboratory experiments. 


http://www.pa.ucla.edu/sites/default/files/plasma_Howes51917.pdf 
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