Observations of the 3_1,3-2_0,2 transition of SO₂

White, Glenn J. and Phillips, J. P. (1983). Observations of the 3_1,3-2_0,2 transition of SO₂. Monthly Notices of the Royal Astronomical Society, 203 pp. 661–666.

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URL:	http://adsabs.harvard.edu/full/1983MNRAS.203..661W
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Abstract

We have measured the 3_1,3-2_0,2 transition of SO₂ in W49, W51, OriA and Sgr B2, and found SO₂ emission upper limits in a further seven sources. The total number of SO2 molecules in individual clouds is found to range from ~2×10⁵¹ to ~10⁵³, implying a relative abundance X(SO₂) ~ 10^-6 in OriA, and lower limits varying from X(SO₂) ~ 10^-9 to ~10^-8 in the remaining sources. These results are briefly discussed within the context of current models of interstellar cloud chemistry.

Item Type:	Journal Article
Copyright Holders:	1983 Royal Astronomical Society
ISSN:	0035-8711
Keywords:	interstellar chemistry; molecular clouds; sulfur dioxides; abundance; emission spectra; line spectra; molecular spectra
Academic Unit/Department:	Science > Physical Sciences
Interdisciplinary Research Centre:	Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID:	33783
Depositing User:	Glenn White
Date Deposited:	07 Jun 2012 09:49
Last Modified:	07 Jun 2012 23:46
URI:	http://oro.open.ac.uk/id/eprint/33783

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Observations of the 3_1,3-2_0,2 transition of SO₂