Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011rmxaa..47..277r&link_type=abstract
Revista Mexicana de Astronomía y Astrofísica Vol. 47, pp. 277-288 (2011)
Astronomy and Astrophysics
Astronomy
3
Ism: Jets And Outflows, Ism: Kinematics And Dynamics, Stars: Mass-Loss, Stars: Pre-Main Sequence
Scientific paper
We compute axisymmetric, single-sinusoidal mode variable ejection models with a non-top hat ejection velocity cross section. We find that for decreasing edge-to-center velocity ratios one obtains internal working surfaces with progressively more extended bow shock wings. These wings produce [S II] emission which partially fills in the inter-knot regions in predicted intensity maps. We then compute 3-mode models (with parameters appropriate for the HH 34 jet), and compare predicted intensity maps with archival HST images of HH 34. We find that a model with a moderate edge-to-center velocity ratio produces knot structures with morphologies and time-variabilites with clear similarities to the observations of HH 34.
de Colle Fabio
Esquivel Alejandro
Kajdic Primoz
Lopez-Camara Diego
Noriega-Crespo Alberto
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