Knot production in magnetized Herbig-Haro jets

Details Knot production in magnetized Herbig-Haro jets Knot production in magnetized Herbig-Haro jets

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002a%26a...381l..53t&link_type=abstract

Astronomy and Astrophysics, v.381, p.L53-L56 (2002)

Astronomy and Astrophysics

Astrophysics

5

Stars: Hh Objects, Magnetohydrodynamics: Jets And Outflows, Cooling: Forbidden Emission Lines

Scientific paper

We present the results of a simulation of an axisymmetric (2.5-dimensional), magnetized Herbig-Haro jet. The parameters are chosen for a typical collimated outflow from a young stellar low-mass object. We show that the nose-cone feature of 2D MHD jets critically depends on the magnetic field topology of the precollimation mechanism. The most prominent features of our model jet are knot-like structures along the jet axis which develop in the foremost part of the jet. Shocks associated with these internal knot-like structures mimic bow-shock like features as seen in Herbig-Haro flows.

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