Jet Launching

next up previous
Next: The Nearest Engines? Up: Observations of Energy Transport Previous: A Long-Range Perspective

2. Jet Launching 

The jet-launching paradigm (black hole  plus accretion disk  plus twisted magnetic fields-B++?) is basically the same as in 1984, though the launching models are more refined (see Wiita, these Proceedings). Direct evidence for the presumed small-scale mass concentrations and disk-like geometries has burgeoned in all wavebands (Scheuer, these Proceedings). The ability to measure mass concentrations on sub-parsec scales via the kinematics of molecular masers  (Miyoshi et al. 1995) has added an exciting new tool to the kit. So far, our first glimpses of the environs of the central engine seem to reinforce old ideas about what this engine contains.

Alan Bridle
Wed Apr 10 10:19:46 EDT 1996