Smith, Michael D., Rosen, Alexander (2007) Hydrodynamic simulations of rotating molecular jets. Monthly Notices of the Royal Astronomical Society, 378 (2). pp. 691-700. ISSN 0035-8711. (doi:10.1111/j.1365-2966.2007.11816.x) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:2311)
The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. | |
Official URL: http://www.blackwell-synergy.com/doi/abs/10.1111/j... |
Abstract
Molecular outflows and the jets which may drive them can be expected to display signatures associated with rotation if they are the channels through which angular momentum is extracted from material accreting on to protostars. Here, we determine some basic signatures of rapidly rotating flows through three-dimensional numerical simulations of hydrodynamic jets with molecular cooling and chemistry. We find that these rotating jets generate a broad advancing interface which is unstable and develops into a large swarm of small bow features. In comparison to precessing jets, there is no stagnation point along the axis. The greater the rotation rate, the greater the instability. On the other hand, velocity signatures are only significant close to the jet inlet since jet expansion rapidly reduces the rotation speed. We present predictions for atomic, H-2 and CO submillimetre images and spectroscopy including velocity channel maps and position-velocity diagrams. We also include simulated images corresponding to Spitzer IRAC band images and CO emission, relevant for APEX and eventual ALMA observations. We conclude that protostellar jets often show signs of slow precession but only a few sources display properties which could indicate jet rotation.
Item Type: | Article |
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DOI/Identification number: | 10.1111/j.1365-2966.2007.11816.x |
Uncontrolled keywords: | hydrodynamics; shock waves; ISM : clouds; ISM : jets and outflows; ISM : molecules |
Subjects: |
Q Science > QB Astronomy Q Science > QC Physics |
Divisions: | Divisions > Division of Natural Sciences > Physics and Astronomy |
Depositing User: | Suzanne Duffy |
Date Deposited: | 19 Mar 2008 08:38 UTC |
Last Modified: | 05 Nov 2024 09:33 UTC |
Resource URI: | https://kar.kent.ac.uk/id/eprint/2311 (The current URI for this page, for reference purposes) |
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