The jet of the Low Luminosity AGN of M81. Evidence of Precession
Konferensbidrag (offentliggjort, men ej förlagsutgivet), 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.


Antxon Alberdi

CSIC - Instituto de Astrofísica de Andalucía (IAA)

Ivan Marti-Vidal

Chalmers, Rymd- och geovetenskap, Onsala rymdobservatorium

J. M. Marcaide

Universitat de Valencia

J. C. Guirado

Universitat de Valencia

Miguel Angel Perez-Torres

CSIC - Instituto de Astrofísica de Andalucía (IAA)

Eduardo Ros

Universitat de Valencia

Max Planck-institutet

Andreas Brunthaler

Max Planck-institutet

EPJ Web of Conferences

21016275 (ISSN) 2100014X (eISSN)

Vol. 61 08002


Astronomi, astrofysik och kosmologi


Grundläggande vetenskaper


Onsala rymdobservatorium



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