Mackay, D.D.S (1995) The chemistry of silicon in hot molecular cores. Monthly Notices of the Royal Astronomical Society, 274 (3). pp. 694-700. ISSN 0035-8711.
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Abstract
The gas-phase chemistry of hot molecular cores is thought to depend upon the composition of evaporated ice mantle material and its subsequent gas-phase reactions. Hydrogenated species are thought to predominate within the ices. Since monosilane, SiH4, is the likely reservoir for silicon, we have modelled its influence upon hot core chemistry. For a range of likely temperatures and densities, we find that its evaporation results in substantial fractional abundances of SiO, along with H2SiO and HNSi in a time-scale of a few x 10(4) yr, while itself remaining the major gas-phase silicon species. In the absence of available molecular oxygen, atomic silicon and carbon-silicon species such as HCSi and SiCH2 are shown to become increasingly abundant.
| Item Type: | Article |
|---|---|
| Uncontrolled keywords: | molecular processes; ism, clouds; ism, molecules |
| Subjects: | Q Science > QB Astronomy |
| Divisions: | Faculties > Science Technology and Medical Studies > School of Biosciences Faculties > Science Technology and Medical Studies > School of Physical Sciences |
| Depositing User: | O.O. Odanye |
| Date Deposited: | 04 Jun 2009 13:06 |
| Last Modified: | 21 May 2011 00:07 |
| Resource URI: | http://kar.kent.ac.uk/id/eprint/19363 (The current URI for this page, for reference purposes) |
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