[Previous] | [Session 110] | [Next]
K. C. Chambers (Institute for Astronomy, University of Hawaii)
The peculiar optical and infrared morphologies called the ``alignement effect'' and the associated complex velocity fields observed in high redshift radio galaxies and quasars can be modeled as simple bipolar shells of dust swept up by a bipolar outflow associated with the active nucleus and illuminated by the central source. I show that by choosing the shape of a pressure driven wind in an inverse square ambient denstity distribution to fit the observed morphology in the image of a high redshift radio galaxy, I can then predict the details of the observed velocity field as seen in long slit spectra. The fit is remarkable, especially as there is no free parameter to adjust the kinematics once the morphology is fit. This is the first physically self consistent dynamical model of the alignment effect. The implications for massive galaxies at high redshift include the requirement of an epoch with substantial dust distributed throughout a very large and well orgainized halo at early epochs.