Back to Volume
Paper: Magnetic Field Strength in Parsec-Scale Blazar Jets
Volume: 427, Accretion and Ejection in AGN: a Global View
Page: 207
Authors: O’ Sullivan, S. P.; Gabuzda, D. C.
Abstract: 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.
Back to Volume