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morphology (the exception is the nearby radio galaxy Centaurus A). This accords well with the canonical view that quasars and BL Lacer- tae objects have an intrinsically symmetric twin- jet structure that is transformed by differential Doppler boosting to the observed core-jet mor- phology. 

• Are opening angles correlated with γ lu- minosity? 

Given the expectation that the γ -ray emission from AGN is beamed and thus orientation de- pendent, a link between γ -ray emission and the parsec scale morphology of AGN has been sought (e.g. [18]). We fit circular Gaussians to the visibility data and measured the angle at which the innermost jet component appears rel- ative to the position of the core i.e. the opening angle. Of the LAT AGN Bright Sample (LBAS) sources 78% have an opening angle > 30 degrees 

while only 27% of non-LBAS sources do. In other words, γ -ray bright jets are pointed closer to the line of sight than γ -ray faint jets. This re- sult should be treated with great caution as the sample size for this analysis is currently small but [16] report similar results. 

If confirmed the above result presents two pos- sibilities: either the LBAS jets have smaller Lorentz factors (since the width of the rela- tivistic beaming cone ∼ 1 / Γ) or LBAS jets are pointed closer to the line of sight. The former scenario appears unlikely, indeed the opposite effect is reported by [11, 12]. 

• Redshift distribution 

The redshift distribution of the quasars and BLLacs in the TANAMI sample is similar to those for the LBAS and EGRET blazars. There does not appear to be any significant difference between the radio- and γ -ray selected subsam- 

