Magnetic-field fluctuations around the radio galaxy 3C 31
| dc.creator | Laing, R. A. | |
| dc.creator | Bridle, A. H. | |
| dc.date | 2007-10-04 | |
| dc.date.accessioned | 2026-07-07T08:34:11Z | |
| dc.date.available | 2026-07-07T08:34:11Z | |
| dc.description | We present an analysis of the magnetic-field fluctuations in the magnetoionic medium in front of the radio galaxy 3C 31 derived from rotation-measure (RM) fits to high-resolution polarization images. We first show that the Faraday rotation must be due primarily to a foreground medium. We determine the RM structure functions for different parts of the source and infer that the simplest form for the power spectrum is a power law with a high-frequency cutoff. We also present three-dimensional simulations of RM produced by a tangled magnetic field in the hot plasma surrounding 3C 31, and show that the observed RM distribution is consistent with a spherical plasma distribution in which the radio source has produced a cavity. | |
| dc.description | 5 pages, 4 figures, to appear in Extragalactic Jets: Theory and Observation from Radio to Gamma Ray, T. A. Rector and D. S. De Young (eds.), ASP Conference Series | |
| dc.identifier | https://arxiv.org/abs/0710.1067 | |
| dc.identifier | http://arxiv.org/abs/0710.1067 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/139346 | |
| dc.subject | Astrophysics | |
| dc.title | Magnetic-field fluctuations around the radio galaxy 3C 31 | |
| dc.type | text |