A dichotomy in dust-jet orientation in radio galaxies
  We have analyzed the position angle (PA) differences between radio jets and dust distributions in the centers of Fanaroff & Riley Type 1 (FRI) radio galaxies. We model the observed PA differences to infer the three-dimensional relative orientation of jet and dust. Our main conclusion is that there is a dichotomy in dust-jet-galaxy orientation both in projection and in three-dimensional space. The orientation dichotomy can explain the contradictory results obtained in previous studies. We briefly mention scenarios that might explain the dichotomy. 
Gijs Verdoes Kleijn (1), Tim de Zeeuw (2) ((1) ESO Germany, (2) Leiden   Observatory)