This page was printed on 2022-05-18 from www.nordita.org/integrability2019
In Astrophysics and Astroparticle Physics:
[2022-033] Solar-Cycle Variation of quiet-Sun Magnetism and Surface Gravity Oscillation Mode by Maarit J. Korpi-Lagg, Andreas Korpi-Lagg, Nigul Olspert, Hong-Linh Truong Submitted to Astronomy & Astrophysics
In High-Energy Physics and Cosmology:
[2022-027] On possible composite structure of scalar fields in expanding universe by A.A. Zheltukhin
In Condensed Matter, Statistical and Biological Physics:
[2022-023] MeMC: A package for Monte-Carlo simulations of spherical shells by Vipin Agrawal, Vikash Pandey, Hanna Kylhammar, Apurba Dev, Dhrubaditya Mitra
Dynamo theory explains why the plasma in our universe is magnetized. As we now know, astrophysical turbulence without magnetic fields does not exist. This has dramatic consequences, especially when the magnetic Prandtl number is very different from unity. Examples include the interstellar medium and especially clusters of galaxies. There we also reach the limits of validity of magnetohydrodynamics and thus need to worry about the correct microphysical description. In the Sun, a large-scale dynamo is most likely operational within the bulk of the convection zone, but this situation drastically changes as the surface and atmosphere are reached. Simulating these aspects correctly on the computer requires special care, which we are only now beginning to appreciate. The goal is to use Nordita's inhouse expertise in the field of dynamo theory to draw together experts from within the Nordic countries and elsewhere to prepare the way for new work.