| Issue |
EPJ Web of Conferences
Volume 61, 2013
The Innermost Regions of Relativistic Jets and Their Magnetic Fields
|
|
|---|---|---|
| Article Number | 08002 | |
| Number of page(s) | 4 | |
| Section | AGN jets | |
| DOI | https://doi.org/10.1051/epjconf/20136108002 | |
| Published online | 09 December 2013 | |
https://doi.org/10.1051/epjconf/20136108002
The jet of the Low Luminosity AGN of M81
Evidence of Precession
1 Instituto de Astrofísica de Andalucía (IAA-CSIC), P.O. Box 3004, 18008 - Granada, Spain
2 ALMA Regional Center (ARC), Onsala Space Observatory, SE-439 92 Onsala, Sweden
3 Departament d’Astronomia i Astrofísica, Universitat de València, C. Dr. Moliner 50, E-46100 Burjassot, València, Spain
4 Observatori Astronòmic, Universitat de València, Parc Científic, C. Catedrático José Beltrán 2, E-46980 Paterna, València, Spain
5 Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany
a e-mail: antxon@iaa.es
b e-mail: ivan.marti-vidal@chalmers.se
Published online: 9 December 2013
In this contribution, we summarize our main results of a big campaign of global VLBI observations of the AGN in M81 (M81*) phase-referenced to the radio supernova SN 1993J. Thanks to the precise multi-epoch and multi-frequency astrometry, we have determined the normalized core-shift of the relativistic jet of M81* and estimated both the magnetic field and the particle density at the jet base. We have also found evidence of jet precession in M81* coming from the systematic time evolution of the jet orientation correlated with changes in the overall flux density.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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