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The Illustris++ Project: The Next Generation of Cosmological Hydrodynamical Simulations of Galaxy Formation

In: High Performance Computing in Science and Engineering ´16

Author

Listed:
  • Volker Springel

    (Zentrum für Astronomie der Universität Heidelberg, Astronomisches Recheninstitut
    Heidelberg Institute for Theoretical Studies)

  • Annalisa Pillepich

    (Max-Planck Institute for Astronomy)

  • Rainer Weinberger

    (Heidelberg Institute for Theoretical Studies)

  • Rüdiger Pakmor

    (Heidelberg Institute for Theoretical Studies)

  • Lars Hernquist

    (Harvard University, Center for Astrophysics)

  • Dylan Nelson

    (Max-Planck Institute for Astrophysics)

  • Shy Genel

    (Columbia University, Department of Astronomy)

  • Mark Vogelsberger

    (MIT, Kavli Institute for Astrophysics and Space Research)

  • Federico Marinacci

    (MIT, Kavli Institute for Astrophysics and Space Research)

  • Jill Naiman

    (Harvard University, Center for Astrophysics)

  • Paul Torrey

    (MIT, Kavli Institute for Astrophysics and Space Research)

Abstract

Cosmological simulations of galaxy formation provide the most powerful technique for calculating the non-linear evolution of cosmic structure formation. This approach starts from initial conditions determined during the Big Bang – which are precisely specified in the cosmological standard model – and evolves them forward in time to the present epoch, thereby providing detailed predictions that test the cosmological paradigm. Here we report first preliminary results from a new generation of hydrodynamical simulations that excel with new physics, enlarged dynamic range and more accurate numerical techniques. The simulations of our ongoing Illustris++ project on HazelHen successfully reproduce the appearance of a red sequence of galaxies that are quenched by accreting supermassive black holes, while at the same time yielding a population of disk galaxies with properties that closely match observational data. Also, we are able to predict the amplification of magnetic fields through small-scale dynamo processes in realistic simulations of large galaxy populations, thereby providing novel predictions for the field strength and topology expected for galaxies of different size and type.

Suggested Citation

  • Volker Springel & Annalisa Pillepich & Rainer Weinberger & Rüdiger Pakmor & Lars Hernquist & Dylan Nelson & Shy Genel & Mark Vogelsberger & Federico Marinacci & Jill Naiman & Paul Torrey, 2016. "The Illustris++ Project: The Next Generation of Cosmological Hydrodynamical Simulations of Galaxy Formation," Springer Books, in: Wolfgang E. Nagel & Dietmar H. Kröner & Michael M. Resch (ed.), High Performance Computing in Science and Engineering ´16, pages 5-20, Springer.
    • Handle: RePEc:spr:sprchp:978-3-319-47066-5_1
    DOI: 10.1007/978-3-319-47066-5_1
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