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Research Abstracts Online
January 2008 - March 2009

University of Minnesota Twin Cities
Institute of Technology
School of Physics and Astronomy
Department of Astronomy

PI: Thomas W. Jones, Fellow

Numerical Studies of Particles and Fluids in Astrophysics

This group continued its unique and highly successful study of the acceleration and propagation of high-energy charged particles, also known as cosmic rays (CRs), and their contributions to frontier astrophysical problems. Recent work has included large, multidimensional magnetohydrodynamical simulations and associated development projects that incorporate the group’s innovative treatments of particle transport plus other enhancements designed to improve computational performance, such as adaptive mesh refinement. Specific areas of research include the study of the formation and evolution of clusters of galaxies, especially involving interactions with "relativistic radio plasma” injected by active galaxies, and shocks in magnetized clumpy media, similar to cluster media. Since these researchers alone have the computational tools to model these phenomena including cosmic rays, and since these problems are all astrophysically fundamental, these simulations are extremely important.

Group Members

Paul P. Edmon, Graduate Student
Adam Frank, Department of Physics and Astronomy, University of Rochester, Rochester, New York
Hyesung Kang, Department of Earth Sciences, Pusan National University, Pusan, Republic of Korea
Sean O’Neill, Collaborator
Nicholas M. Lind, Supercomputing Institute Undergraduate Intern
Pete Mendygral, Graduate Student
Francesco Miniati, ETH, Zurich, Switzerland