A line confusion-limited millimeter survey of Orion KL - III. Sulfur oxide species

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Volume 556 (August 2013)

A&A, 556 (2013) A143

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Table 4

Column densities, N, for SO₂ and its isotopologues, obtained from LTE model analysis.

Component	SO₂	³⁴SO₂	SO₂^(a)	³³SO₂	SO¹⁸O	SO¹⁷O	SO₂ν₂ = 1	³⁴SO₂ν₂ = 1
	N × 10¹⁵	N × 10¹⁵	N × 10¹⁵	N × 10¹⁵	N × 10¹⁵	N × 10¹⁵	N × 10¹⁵	N × 10¹⁵
	(cm^-2)	(cm^-2)	(cm^-2)	(cm^-2)	(cm^-2)	(cm^-2)	(cm^-2)	(cm^-2)

Extended ridge	0.23 ± 0.06	0.10 ± 0.04	2.3 ± 0.7	0.04 ± 0.001	0.020 ± 0.007	0.007 ± 0.003	0.013 ± 0.003	...
Compact ridge	1.2 ± 0.4	0.5 ± 0.2	12 ± 2	0.07 ± 0.02	0.03 ± 0.01	0.007 ± 0.003	0.20 ± 0.05	0.05 ± 0.02
High-velocity plateau	130 ± 50	7 ± 2	161 ± 46	1.0 ± 0.3	0.9 ± 0.3	0.10 ± 0.04	0.4 ± 0.1	0.06 ± 0.02
Plateau	10 ± 3	0.6 ± 0.2	14 ± 3	0.5 ± 0.2	0.06 ± 0.02	0.03 ± 0.01	...	...
Hot core	100 ± 40	10 ± 4	230 ± 60	4 ± 1	1.5 ± 0.5	0.9 ± 0.3	4 ± 1	0.7 ± 0.2
20.5 km s^-1 comp.	0.17 ± 0.06	0.04 ± 0.01	0.8 ± 0.2	0.009 ± 0.003	...	...	...	...

Notes.

^(a)

Values calculated from the solar abundance ratio ³²S/³⁴S = 23 and from the column densities obtained for ³⁴SO₂ (optically thin lines).

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