A Survey of Magnetogene​​​sis Models
We explored the evolution and outcome of more than 20 combinations of seeding models for extragalactic magnetic fields and gas physics.
The reference volume is a 80Mpcregion simulated with 1024cells and dark matter particles using ENZO-MHD ("Dedner cleaning").
Here we give access to some of the important "clean" data, including derived quantities that globally describes the z=0 results of most significant models.
More details and results are presented in this article.
  1. Phillips@mail.com
    Primordial seeding
    (runs "P" and "Pz2")
    The initial magnetic fields seed is a uniform 1nG. The gas evolves neglecting gas cooling and star formation.
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    Astrophysical seeding
    (runs "CSF3", "CSFBH3" and "CSFBH5")
    Magnetic fields are injected by stellar and/or black hole feedback. Radiative gas cooling and metal fields.
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    Dynamo growth
    (run "DYN6")
    Subgrid dynamo model for amplification of negligible primordial seed fields. The gas evolves in a non-radiative way.

Data

Data

Data

3-dimensional power spectra

Volume distribution function of B-fields at z=0

Data

Data

Cosmic star formation history

Average B-field/density relation for models

Data

Data

  1. Resources
    These simulations have been run on the Piz-Daint cluster at CSCS (Lugano, project ID s701, s805).
  2. Papers
  3. Contributors
    F. Vazza, M. Brueggen, C. Gheller, S. Hackstein. D. Wittor, P. M. Hinz