A possible hydrodynamical equivalence for astrophysical jets

Details A possible hydrodynamical equivalence for astrophysical jets A possible hydrodynamical equivalence for astrophysical jets

2003-12-05

arxiv.org/abs/astro-ph/0312181v2

Rev.Mex.Astron.Astrofis. 41 (2005) 453-459

Astronomy and Astrophysics

Astrophysics

12 pages, 1 figure. Accepted for publication on Rev.Mex.Astron.Astrofis. Expanded version

Scientific paper

The idea of a unified model for quasars and micro-quasars has been considered for a long time, despite the different environments and physical conditions where both classes of objects reside. Here we show the existence of a simple scaling law, relating the maximum size of a jet to the properties of the gas medium into which it expands. This appears to be valid for all types of hydrodynamical jets, and can be thought of as a broad unified model. The expansion velocity of the jet and the physical properties of the surrounding gas combine in such a way that a limit to the maximum extent of jets at different scales can be obtained.

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