The physical conditions in IRDC clumps from Herschel/HIFI observations of H2O

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Volume 570 (October 2014)

A&A, 570 (2014) A51

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Table 3

Observed lines.

Species	Frequency¹	E _u ²	HPBW	Observatory	η _mb	T _sys	δv
	(GHz)	(K)	(′′)			(K)	(km s^-1)

o-H₂O 1₁₀ → 1₀₁	556.93607	61.0	38	HIFI 1A	0.75	76	0.6
o-HO 1₁₀ → 1₀₁	547.67644	60.5	39	HIFI 1A	0.75	76	0.6
N₂H⁺6 → 5	558.96666	93.9	38	HIFI 1A	0.75	76	0.6
N₂H⁺3 → 2	279.511701	26.8	22	APEX	0.73	120–210	0.53
C¹⁷O 3 → 2	337.061129	32.4	18	APEX	0.73	130	0.87
C³⁴S 7 → 6	337.396459	64.8	18	APEX	0.73	130	0.87
CCH 4₅₅ → 3₄₄^a	349.337706	42.0	18	APEX	0.73	130	0.87
CCH 4₄₄ → 3₃₃^b	349.399276	42.0	18	APEX	0.73	130	0.87
CH₃OH 4₀ → 3_-1 −E	350.687662	28.0	18	APEX	0.73	130	0.87
CH₃OH 7_-1 → 6_-1 −E	338.344588	70.6	18	APEX	0.73	130	0.87
CH₃OH 7_{0 +} → 6_{0 +} −A	338.408698	65.0	18	APEX	0.73	130	0.87
CH₃OH 7₀ → 6₀ −E	338.124488	78.1	18	APEX	0.73	130	0.87
CH₃OH 7₁ → 6₁ −E	338.614936	86.1	18	APEX	0.73	130	0.87
CH₃OH 7₂ → 6₂ −E	338.721693	87.3	18	APEX	0.73	130	0.87
CH₃OH 7_-2 → 6_-2 −E	338.722898	90.9	18	APEX	0.73	130	0.87
CH₃OH 7_{− 2 −} → 6_{− 2 −} −A	338.512853	102.7	18	APEX	0.73	130	0.87

Notes.

^(a)

Line possibly blended with 4₅₄−3₄₃ at 349.338988 GHz.

^(b)

Line possibly blended with 4₄₃−3₃₂ at 349.400671 GHz.

Reference. (1) Müller et al. (2005, CDMS); (2) Schöier et al. (2005, LAMDA).

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