The structure and evolution of radiatively cooling jets

Details The structure and evolution of radiatively cooling jets The structure and evolution of radiatively cooling jets

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...360..370b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 360, Sept. 10, 1990, p. 370-386.

Statistics

Computation

180

Computational Astrophysics, Magnetohydrodynamics, Plasma Jets, Radiative Heat Transfer, Computerized Simulation, H Ii Regions, Herbig-Haro Objects, Plasma Pinch, Pre-Main Sequence Stars

Scientific paper

The two-dimensional simulations presently used to characterize the structure and evolution of radiatively cooling supersonic jets reveal that cooling jet morphologies resemble those of adiabatic outflows, but with the fundamental difference that a dense, cold shell will condense out of the shocked gas at the head of the jet when the cooling distance behind either of the two principal shocks is smaller than the jet radius. For very high cooling rates, the material that accumulates at the head of the jet forms an extended plug of cold gas resembling the 'nose cone' observed in numerical simulations of strongly magnetized adiabatic jets. An investigation is made of the dependence of jet properties on the density ratio between the beam and the ambient medium, as well as on the strength of radiative cooling.

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