ISSN:
1572-946X
Keywords:
Shock Waves
;
ISM: Kinematics and Dynamics
;
Galaxies: Active
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Observations of active galactic nuclei imply that shocks must be an essential and important part of their structure. We outline the basic observations, and discuss those features which must be addressed by any physical model of active nuclei. These features, in particular the observed spectrum of strong emission and absorption lines, lead naturally to the conclusion that shocks are present. The velocity widths of these lines, which range from hundreds to many thousands of kilometres per second, are most readily explained by models in which shocks play an important role in the generation of cool gas. The extreme parameters of the shocks in and around active nuclei provide a unique application for the physics discussed in this meeting.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00627352
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