VLBI observations of TXS 0506+056 show a spine-sheath jet with aligned inner and perpendicular outer EVPAs plus a new superluminal component near the IceCube neutrino detection.
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5 Pith papers cite this work. Polarity classification is still indexing.
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SKA-VLBI can deliver high-sensitivity milliarcsecond imaging and polarimetry of faint blazars to constrain models of high-energy photon and neutrino emission in AGN jets.
Multi-wavelength monitoring of a gamma-ray flare in 1H 0323+342 reveals sub-hour variability, jet-corona transition, and ~10^46 erg/s jet power via external Compton modeling of disk and BLR photons.
Follow-up observations reclassify 7 of 10 candidate ultra extreme high-energy-peaked BL Lacs as AGNs, with only 2 possibly compatible with MeV-peaked SEDs.
Review assessing HSP BL Lacs as UHECR and neutrino sources, noting strains from baryonic loading, heavy-nuclei preference in Auger data, and isotropy mismatch with beamed sources.
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High-Synchrotron-Peaked BL Lacs as Multi-Messenger Sources: Connecting Ultra-High-Energy Cosmic Rays and Neutrinos
Review assessing HSP BL Lacs as UHECR and neutrino sources, noting strains from baryonic loading, heavy-nuclei preference in Auger data, and isotropy mismatch with beamed sources.