Magnetic Field Strength in Parsec-Scale Blazar Jets

Details Magnetic Field Strength in Parsec-Scale Blazar Jets Magnetic Field Strength in Parsec-Scale Blazar Jets

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aspc..427..207o&link_type=abstract

Accretion and Ejection in AGN: a Global View. Proceedings of a conference held June 22-26, 2009 in Como, Italy. Edited by Laura

Physics

Scientific paper

We present magnetic field strength estimates from measurements of the frequency-dependent shift of the parsec-scale radio core of four blazar jets using VLBA observations from 4.6-43 GHz. We find field strengths of the order of 100’s of mG at 1 pc from the base of these jets. Extrapolation of our results (B ∝ r-1, where r is the distance from the base of the jet) to the jet launching regions leads to magnetic field strengths consistent with those expected from theoretical simulations of magnetically powered jets.

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