Abstract

The instabilities of astrophysical jets are investigated in a new and more generalized way than in previous studies. The dispersion equations are solved for a thermally confined slab jet in a complex (k,ω) domain. A number of singularities related to certain wave modes in this system are found. It is shown that the internal jet flow in the system is characterized by two internal sound waves, propagating against and with the flow, respectively. These two body waves grow in amplitude. The one propagating against the flow is condensed, which is crucial to disruption of jets

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