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Center for Nonlinear Studies |
CANCELLED
Part 1: Particle-in-Cell Simulations
Recently, I have supported and developed various simulations using particle-in-cell (PIC) software (Chicago) in pulsed-power physics, high energy density physics, circuit analysis, plasma theory and strongly coupled plasma (SCP) physics. In this talk, I will discuss the scientific reasoning behind these simulations. I will also discuss previous work on algorithm implementation into Chicago. I will also describe the motivation behind the stand-alone C++ SCP code with GPU implementation. I will end this part of my presentation discussing the benchmark testing done with code developers in order to validate high performance computing algorithms for Chicago.
Part 2: Astrochemistry of Galactic and Extragalactic Star Forming Regions
In the second part of my talk, I will discuss the work accomplished for my dissertation. The physical processes that determine how molecular clouds fragment, form clumps/cores and then stars depend strongly on both recent radiative and mechanical feedback from massive stars and, on longer term, through enhanced cooling due to the buildup of metals. Radiative and mechanical energy input from stellar populations can alter subsequent star formation over a large part of a galaxy and is hence relevant to the evolution of galaxies, but to understand the overall evolution of star formation in galaxies we need to watch the feedback processes at work on giant molecular cloud (GMC) scales. By doing this we can begin to answer how strong feedback environments change the properties of the substructure in GMCs. Applying the theory of Galactic star formation to other galaxies has been a challenging process due to the lack of resolution with previous instruments. However, due to current radio interferometry we are able to resolve nearby galaxies GMCs on galactic scales. In this talk, I discuss observations of molecular gas tracers (e.g. HCO+, HCN, HNC, CS, C2H, N2H+) in nearby dwarf galaxies, the Galactic Center and the Large Magellanic Cloud.
Host: Jonas Lippuner