Galactic dynamos

A Brandenburg, E Ntormousi - Annual Review of Astronomy and …, 2023 - annualreviews.org
Spiral galaxies, including the Milky Way, have large-scale magnetic fields with significant
energy densities. The dominant theory attributes these magnetic fields to a large-scale …

But what about...: cosmic rays, magnetic fields, conduction, and viscosity in galaxy formation

PF Hopkins, TK Chan… - Monthly Notices of …, 2020 - academic.oup.com
We present and study a large suite of high-resolution cosmological zoom-in simulations,
using the FIRE-2 treatment of mechanical and radiative feedback from massive stars …

Introducing SPHINX-MHD: the impact of primordial magnetic fields on the first galaxies, reionization, and the global 21-cm signal

H Katz, S Martin-Alvarez, J Rosdahl… - Monthly Notices of …, 2021 - academic.oup.com
We present the first results from SPHINX-MHD, a suite of cosmological radiation-
magnetohydrodynamics simulations designed to study the impact of primordial magnetic …

Dynamical evolution of magnetic fields in the intracluster medium

P Domínguez-Fernández, F Vazza… - Monthly Notices of …, 2019 - academic.oup.com
We investigate the evolution of magnetic fields in galaxy clusters starting from constant
primordial fields using highly resolved () cosmological (magnetohydrodynamic) MHD …

Magnetogenesis around the first galaxies: the impact of different field seeding processes on galaxy formation

E Garaldi, R Pakmor, V Springel - Monthly Notices of the Royal …, 2021 - academic.oup.com
We study the evolution of magnetic fields generated by charge segregation ahead of
ionization fronts during the Epoch of Reionization, and their effects on galaxy formation. We …

AGN jet feedback on a moving mesh: gentle cluster heating by weak shocks and lobe disruption

MA Bourne, D Sijacki - Monthly Notices of the Royal …, 2021 - academic.oup.com
While there is overwhelming observational evidence of active galactic nuclei (AGN)-driven
jets in galaxy clusters and groups, if and how the jet energy is delivered to the ambient …

How primordial magnetic fields shrink galaxies

S Martin-Alvarez, A Slyz, J Devriendt… - Monthly Notices of …, 2020 - academic.oup.com
As one of the prime contributors to the interstellar medium energy budget, magnetic fields
naturally play a part in shaping the evolution of galaxies. Galactic magnetic fields can …

Unravelling the origin of magnetic fields in galaxies

S Martin-Alvarez, H Katz, D Sijacki… - Monthly Notices of …, 2021 - academic.oup.com
Despite their ubiquity, there are many open questions regarding galactic and cosmic
magnetic fields. Specifically, current observational constraints cannot rule out whether …

Towards convergence of turbulent dynamo amplification in cosmological simulations of galaxies

S Martin-Alvarez, J Devriendt, A Slyz… - Monthly Notices of …, 2022 - academic.oup.com
Our understanding of the process through which magnetic fields reached their observed
strengths in present-day galaxies remains incomplete. One of the advocated solutions is a …

A closer look at supernovae as seeds for galactic magnetization

E Ntormousi, F Del Sordo, M Cantiello… - Astronomy & …, 2022 - aanda.org
Context. Explaining the currently observed magnetic fields in galaxies requires relatively
strong seeding in the early Universe. One of the current theories proposes that magnetic …