Little, L.T. and Kelly, M.L. and Murphy, B.T. (1998) The neutral carbon distribution in a bipolar outflow molecular disc source configuration: G35.2-0.74N. Monthly Notices of the Royal Astronomical Society, 294 (1). pp. 105-117. ISSN 0035-8711.
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| Official URL http://dx.doi.org/10.1046/j.1365-8711.1998.01293.x |
Abstract
Maps are presented of P-3(1)-->P-3(0) [C I] and J=2-->1 (CO)-O-18 line emission from the interstellar molecular cloud G35.2-0.74N. The maps are interpreted with reference to a previous model for the structure of the cloud in which opposing jets from a central object, embedded in a rotating interstellar disc, precess and drive a bipolar molecular outflow. The (CO)-O-18 emission traces the rotating interstellar disc, but the [C I]] emission shows several features. An unresolved component is observed which probably results from dissociation of CO in the centre of the disc by UV radiation from the central source. Background [C I] emission is also observed which shares the rotation of the disc on larger scales. The C I/CO ratio in these components is typically a few per cent. High-velocity [C I] emission, where C I/CO is high (> 0.1-0.4), is observed between the CO molecular outflow and the cavity exacavated by the jet. This material has probably been accelerated by the jet but dissociated by far-UV radiation propagating through the cavity. The C I/CO ratio falls as the shocked outflow later sweeps up CO.
| Item Type: | Article |
|---|---|
| Uncontrolled keywords: | ISM: abundances • ISM: clouds • ISM: individual: G35−0.74N • ISM: jets and outflows. |
| Subjects: | Q Science Q Science > QB Astronomy |
| Divisions: | Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts |
| Depositing User: | M.A. Ziai |
| Date Deposited: | 29 Jun 2011 08:12 |
| Last Modified: | 29 Jun 2011 08:12 |
| Resource URI: | http://kar.kent.ac.uk/id/eprint/17423 (The current URI for this page, for reference purposes) |
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