Opening angles of parsec-scale AGN jets

A. B. Pushkarev, Y. Y. Kovalev, M. L. Lister, T. Savolainen

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific


We have investigated the difference between distributions of intrinsic opening angle for the parsec-scale jets of 44 quasars and those of 12 BL Lacs. We used 15.4 GHz VLBA observations of the 56 sources from the 2 cm VLBA MOJAVE program to determine their apparent jet opening angles by analyzing transverse jet profiles from the data in the image plane. We have found that BL Lacs have on-average wider intrinsic opening angles than those in quasars, while the corresponding distributions of the apparent opening angle are found to be similar.
Original languageEnglish
Title of host publicationMemorie della Societa Astronomica Italiana
Publication statusPublished - 2011
MoE publication typeB3 Non-refereed article in conference proceedings


  • galaxies: active
  • galaxies: jets
  • quasars: general
  • radio continuum: galaxies


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