• Position Angle Changes of Inner-Jets in a Sample of Blazars

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    • Keywords


      Active galactic nuclei: blazars; radio continuum: variability; 𝛾-ray: Fermi-LAT.

    • Abstract


      We have carried out the Gaussian model-fitting to 15 GHz VLBAcores for a sample of blazars from the MOJAVE database, analysed the correlations in the model-fitted parameters and studied the variability properties for different group of sources. We found that the Fermi LAT-detected blazars have on an average higher position angle changes of cores than the non-LAT detected blazars, and that the LAT-detected ones are associated with more variable cores in flux density.

    • Author Affiliations


      Ligong Mi1 2 Xiang Liu1 3

      1. Xinjiang Astronomical Observatory, CAS, 150 Science 1-Street, Urumqi 830011, People’s Republic of China.
      2. University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China.
      3. Key Laboratory of Radio Astronomy, CAS, Nanjing 210008, People’s Republic of China.
    • Dates

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