Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998mnras.298..871l&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 298, Issue 3, pp. 871-876.
Astronomy and Astrophysics
Astronomy
15
Hydrodynamics, Ism: Jets And Outflows
Scientific paper
We have performed 3D numerical simulations of an over-pressurized Herbig-Haro-type jet which propagates into a sidestreaming environment. The interaction between the jet and the sidewind results in a perpendicular acceleration of the jet material, and a consequent curvature of the jet as it moves into the anisotropic medium. We find that an approximately steady configuration is achieved both for a sidewind that is perpendicular to the jet and for a sidewind inclined at 45° towards the jet source. The curvature obtained in both these models is consistent with analytic models of the jet/sidewind problem. We have also calculated Hα maps, which show an emitting sheath around the upwind (with respect to the sidewind) side of the jet beam. This emitting sheath may explain part of the observed emission from curved stellar jets.
Lim Andrew J.
Raga Alejandro C.
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