A spectral survey of molecules in the Orion nebula from 455 - 507 GHz: an inventory of prebiotic chemistry

White, Glenn J.; Araki, M.; Greaves, J. S. and Ohishi, M. (2004). A spectral survey of molecules in the Orion nebula from 455 - 507 GHz: an inventory of prebiotic chemistry. In: Bioastronomy 2002: Life Among the Stars, 08-12 July 2002, Hamilton Island, Australia.

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Abstract

The results of a submillimetre wavelength spectral line survey between 455.1 - 507.4 GHz of the Orion-KL hot cloud core are reported. 254 lines were detected, and are associated with 30 different molecular species or their isotopomeric variants. Apart from the abundant diatomic rotors such as CO and CS, the spectrum is dominated by SO, SO₂ and CH₃OH and large organic molecules such as (CH₃)₂O, CH₃CN, C₂H₃CN, C₂H₅CN and HCOOCH₃ which make up ~72% of the total number of lines; unidentified lines ~13%; and other lines the remaining ~15% of the total. Rotational temperatures and column densities derived using standard rotation diagram analysis techniques were found to range from 70 - 600 K, and 10¹⁴ - 10¹⁷cm² respectively.

Item Type:	Conference Item
Copyright Holders:	2004 International Astronomical Union
Extra Information:	Proceedings of the 213th Symposium of the International Astronomical Union, held at Hamilton Island, Great Barrier Reef, Australia 8-12 July 2002 ISBN: 1-58381-171-0
Academic Unit/Department:	Science > Physical Sciences
Interdisciplinary Research Centre:	Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Related URLs:	http://articles.adsabs.harvard.edu//full...(Other)
Item ID:	32883
Depositing User:	Glenn White
Date Deposited:	27 Feb 2012 10:52
Last Modified:	02 Mar 2012 19:49
URI:	http://oro.open.ac.uk/id/eprint/32883

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