Toward a New Paradigm for the Unification of Radio Loud AGN and its
  Connection to Accretion
  We recently argued (Meyer 2011) that the collective properties of radio loud
active galactic nuclei point to the existence of two families of sources, one
of powerful sources with single velocity jets and one of weaker jets with
significant velocity gradients in the radiating plasma. These families also
correspond to different accretion modes and therefore different thermal and
emission line intrinsic properties: powerful sources have radiatively efficient
accretion disks, while in weak sources accretion must be radiatively
inefficient. Here, after we briefly review of our recent work, we present the
following findings that support our unification scheme: (i) along the broken
sequence of aligned objects, the jet kinetic power increases. (ii) in the
powerful branch of the sequence of aligned objects the fraction of BLLs
decreases with increasing jet power. (iii) for powerful sources, the fraction
of BLLs increases for more un-aligned objects, as measured by the core to
extended radio emission. Our results are also compatible with the possibility
that a given accretion power produces jets of comparable kinetic power.
