1305.5694 (Ligong Mi et al.)

Position angle changes of inner-jets in a sample of blazars    [PDF]

Ligong Mi, Xiang Liu

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

View original: http://arxiv.org/abs/1305.5694