Simulating reionization: yesterday, today, tomorrow

Nickolay Y. Gnedin1,2,3

1Particle Astrophysics Center, Fermi National Accelerator Laboratory, Batavia, IL 60510, USAI
2Kavli Institute for Cosmological Physics and Enrico Fermi Institute, The University of Chicago, Chicago, IL 60637, USA
3Department of Astronomy & Astrophysics, University of Chicago, Chicago, IL 60637, USA

I will review the field of numerical simulations of cosmic reionization: the process of ionizing of intergalactic medium by high redshift galaxies and quasars. I will describe the main physical processes that are important for modeling reionization, explain how these processes are incorporated in computer simulations, and will use simulations to gain insight into the actual reionization process. I will then discuss various computational approaches and will finish with the illustration of how the exponential progress in computer industry allows us to solve problems that we could not even dream about mere 10 years ago.


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