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The First Stars and Galaxies: Challenges for the Next Decade Participants
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Poster
Title: The First Galaxies and the Reionization of the Universe: Feeding and Feedback Author(s): Andreas Pawlik Abstract: Understanding the formation and evolution of the first stars and galaxies is crucial to the understanding of reionization. Detailed theoretical studies of the galaxies before and during reionization are now particularly timely because of the wealth of observational data that will soon be provided by the next generation of telescopes, such as JWST, ALMA, LOFAR, MWA, and others. We simulate the formation of the first galaxies using cosmological smoothed particle hydrodynamics simulations. Zooming in on individual galaxies, we explore how various physical processes affect their evolution. A highlight of our study will be the simulation of the radiation-hydrodynamics of galaxy assembly, which we will perform using our newly-developed multi-frequency radiation transport method TRAPHIC. Feedback from radiation has long been suspected to play a decisive role in galaxy formation. We will use our simulations to investigate the implications of radiative feedback for the nature of the first galaxies and for their observability with future telescopes such as JWST.
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