Molecular line survey of the high-mass star-forming region NGC 6334I with Herschel/HIFI and the Submillimeter Array

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Volume 546 (October 2012)

A&A, 546 (2012) A87

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Table 7

Comparison of the fractional abundances in NGC 6334I with IRAS 16293-2422 and the hot core (HC) and compact ridge (CR) of Orion KL.

Molecule	NGC	IRAS	Orion KL	Orion KL
	6334I	16293-2422^c	HC^e	CR^e


CO	1.2(–5)	4.0(–5)^d	9.0(–5)	1.1(–4)
CH₃OH	4.7(–6)	3.0(–7)	1.4(–7)	4.0(–7)
CH₃OCH₃	1.0(–6)	2.4(–7)	8.0(–9)	1.9(–8)
HCN	8.7(–7)	–	3.0(–7)	–
H₂O	6.7(–7)	–	5.3(–6)	1.0(–4)
OCS	4.0(–7)	2.5(–7)	1.1(–8)	3.0(–8)
CH₃OCHO	2.4(–7)	2.0(–7)	1.4(–8)	3.0(–8)
CS	1.2(–7)	3.0(–9)^d	6.0(–9)	1.0(–8)
SO	8.3(–8)	2.5(–7)	1.9(–7)	3.0(–7)
H₂S	8.3(–8)	9.0(–8)	2.7(–6)^f	–
H₂CO	5.0(–8)	6.0(–8)	7.0(–9)	4.0(–8)
SO₂	3.3(–8)	1.0(–7)	1.2(–7)	1.6(–7)
HCOOH	1.8(–8)	6.2(–8)	8.0(–10)	1.4(–9)
C₂H₅CN	1.4(–8)	1.2(–8)	3.0(–9)	5.0(–9)
H₂CS	1.0(–8)	5.5(–9)	8.0(–10)	1.2(–9)
CH₃CN	9.3(–9)	1.0(–8)	4.0(–9)	5.0(–9)
HNCO	5.0(–9)	9.0(–9)	5.8(–9)	–
C₂H	1.4(–9)	2.2(–10)^d	5.5(–10)	5.3(–9)
HC₃N	1.4(–9)	1.0(–9)	1.8(–9)	6.0(–9)
SiO	1.0(–9)	4.5(–9)	6.0(–9)	8.0(–9)
HCO⁺	4.3(–10)	1.4(–9)^d	1.1(–9)	1.0(–9)
CN	3.7(–10)	8.0(–11)^d	8.0(–10)	8.0(–10)

Notes. Notation a(b) indicates a × 10^−b.

^(d)

Referring to the cooler, less dense envelope.

References.

^(c)

Cazaux et al. (2003), Schöier et al. (2002).

^(e)

Sutton et al. (1995), Caselli et al. (1993) and references therein.

^(f)

From Persson et al. (2007).

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