Ballistic stellar jets from sources with a time-dependent ejection direction

Details Ballistic stellar jets from sources with a time-dependent ejection direction Ballistic stellar jets from sources with a time-dependent ejection direction

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.260..163r&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 260, no. 1, p. 163-170.

Statistics

Computation

59

Jet Flow, Stellar Evolution, Stellar Mass Ejection, Computational Astrophysics, Emission Spectra, Equations Of Motion, Kinematics

Scientific paper

We present models of astrophysical jets ejected from sources with a time-dependent ejection direction. The perturbations in the ejection direction are amplified as a result of a 'garden-hose' effect, resulting in a 'twisted filament' morphology for the jet. Because of this, at large distances from the source the motion of the material is mostly perpendicular to the direction of the jet filament, leading to a 'sideways interaction' between the jet and the surrounding environment. We derive simple models for the kinematics of the jet and for the jet-environment interaction. From these models, we compute emission-line intensity maps that can be directly compared with observations of stellar jets.

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