Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.7701r&link_type=abstract
American Astronomical Society Meeting 203, #77.01; Bulletin of the American Astronomical Society, Vol. 35, p.1323
Astronomy and Astrophysics
Astronomy
Scientific paper
Molecular jets are frequently associated with the star formation process, and so examining simulated jets for molecular emission can help to answer questions related to the energy budget for the jets, the nature of the ambient medium and the evolution of the underlying source. Previously, we have simulated 3D molecular jets and examined them for the effects of the jet-to-ambient density, rapid mass flux changes, and the angle of a fast precessing jet. Here, we extend the work on precessing jets by slowing the rate of the precession to one turn in a jet axis crossing time (for our small grid, this is about 400 years). In one of the two simulations presented here, we removed the pulsation that had been present in all of our previous molecular jet simulations. We will show simulated images in some molelcular hydrogen and CO emission lines, some sample position velocity and velocity channel maps from both simulations. We also analyse the simulations for the mass-velocity and intensity-velocity relationships. This work has been done with the support of PPARC and the Cosmogrid project, funded under PRTLI through the Irish Higher Education Authority.
Rosen Alexander
Smith Masson D.
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