The First Magnetic Fields
| dc.creator | Davies, George | |
| dc.creator | Widrow, Lawrence M. | |
| dc.date | 1999-12-14 | |
| dc.date.accessioned | 2026-07-07T02:34:56Z | |
| dc.date.available | 2026-07-07T02:34:56Z | |
| dc.description | We demonstrate that the Biermann battery mechanism for the creation of large scale magnetic fields can arise in a simple model protogalaxy. Analytic calculations and numerical simulations follow explicitly the generation of vorticity (and hence magnetic field) at the outward-moving shock that develops as the protogalactic perturbation collapses. Shear angular momentum then distorts this field into a dipole-like configuration. The magnitude of the field created in the fully formed disk galaxy is estimated to be 10^(-17) Gauss, approximately what is needed as a seed for the galactic dynamo. | |
| dc.description | 14 pages of text, 1 table, 8 figures | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9912260 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9912260 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/15443 | |
| dc.subject | Astrophysics | |
| dc.title | The First Magnetic Fields | |
| dc.type | text |