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| Paper: |
Close look at an AGN with a VLBI magnifier |
| Volume: |
290, Active Galactic Nuclei: from Central Engine to Host Galaxy |
| Page: |
51 |
| Authors: |
Gurvits, L. I. |
| Abstract: |
Very Long Baseline Interferometry (VLBI) with its new extension to the orbital radio telescope, VSOP/HALCA, offers an unrivaled angular resolution reaching milli- and sub-milliarcseconds at centi- and millimetre wavelengths. I will review recent results of VLBI studies of AGNs emphasizing the following: - nucleus-jet diagnostics based on VLBI, X- and gamma-ray observations of several high-redshift quasars (0014+813 and 2215+020 among them); - parsec- and sub-parsec-scale morphology in the brightest blazars known to date and several other ultra-compact radio-loud AGNs, including intra-day variable quasars; - statistical study of milliarcsecond structures in more than 500 AGNs, allowing us to estimate physical parameters in the optically thick regions of jets ("cores") and their relations to the central engine parameters. |
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