Formation of internal shock waves in bent jets

S. Mendoza; M. S. Longair

doi:10.1046/j.1365-8711.2002.05188.x

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arXiv · astro-ph/0109125

Formation of internal shock waves in bent jets

S. Mendoza·M. S. Longair

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Abstract

We discuss the circumstances under which the bending of a jet can generate an internal shock wave. The analysis is carried out for relativistic and non-relativistic astrophysical jets. The calculations are done by the method of characteristics for the case of steady simple waves. This generalises the non-relativistic treatment first used by Icke (1991). We show that it is possible to obtain an upper limit to the bending angle of a jet in order not to create a shock wave at the end of the curvature. This limiting angle has a value of 75 degrees for non-relativistic jets with a polytropic index k = 4/3, 135 degrees for non-relativistic jets with k = 5/3) and 50 degrees for relativistic jets with k = 5/3. We also discuss under which circumstances jets will form internal shock waves for smaller deflection angles.

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S. Mendoza, M. S. Longair. 2002-01-10. Formation of internal shock waves in bent jets. https://doi.org/10.1046/j.1365-8711.2002.05188.x

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