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Report

Teaser, summary, work performed and final results

Periodic Reporting for period 1 - MAGCOW (The Magnetised Cosmic Web)

Teaser

Summary

This project investigates the origin of observed extragalactic magnetic fields in the Universe, combining advanced numerical simulations and existing or new radio observations.
All publications produced in the course of the project are closely related to the above topic, in the attempt of obtaining the widest and most complete ever of the origin
and effects of cosmic magnetism at cosmological scales.

All publications of the project are made istantaneously available via the arXiv repository (www.arxiv.org).
The open access to all publications produced by the project is also timely enabled by its submission to the https://cris.unibo.it open access repository of the University of Bologna.

Work performed

Continuous activity of production and analysis of new, challenging magneto-hydrodynamical simulations of cosmic structures.
Modelling of existing radio data, guided by theoretical analysis.
Activity of proposing new radio observations to fill existing gaps in our understanding of cosmic magnetism and evolution.
Innovative analysis and modelling techniques to extract information on cosmic magnetism from radio observations.

Final results

\"1. First successful simulation ever of the growth of small-scale dynamo in a simulated galaxy clusters (thanks to unprecedent high spatial resolution): Vazza et al. 2018 MNRAS
2. Most complete suite of cosmological MHD simulations to-date (~25 models) comparing the observable outcomes of magnetogenesis scenarios on different scales (Vazza et al 2017 CQG).
3. First simulation of magnetogenesis scenarios in constrained resimulations of the Local Universe (Hackstein et al. 2018 MNRAS).
4. First simulation ever of the \"\"Harrison mechanism\"\" for the seeding of magnetic fields during recombination (Hutschenreuter et al, submitted).
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