Herschel/HIFI observation of highly excited rotational lines of HNC toward IRC +10 216

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Volume 542 (June 2012)

A&A, 542 (2012) A37

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Table 1

HNC observed line parameters.

	ν₀	v_LSR	v_exp^a		η^b
J′ − J′′	(MHz)	(km s^-1)	(km s^-1)	(K km s^-1)

1–0	90 663.6	–26.3(1)	15.4(2)	44.9(8)	0.80
3–2	271 981.1	–26.4(1)	14.4(1)	60.7(10)	0.52

6–5	543 897.6	–26.2(3)	12.6(3)	3.53(5)	0.75
7–6	634 510.8	–26.7(4)	12.3(4)	2.75(6)	0.75
8–7	725 107.3	–26.7(4)	12.5(4)	2.87(8)	0.75
9–8	815 684.7	–25.6(7)	12.4(7)	1.95(15)	0.75
10–9	906 240.5	–25.8(15)	10.5(20)	1.23(25)	0.74
11–10	996 772.3	–27.4(15)	13.6(18)	1.55(22)	0.74
12–11	1 087 277.9	–25.3(10)	12.2(12)	0.94(20)	0.74

Notes. Number in parentheses are 1σ uncertainties in units of the last digits.

^(a)

v_exp is the half width at zero level.

^(b)

η is the efficiency parameter used to convert antenna temperature () into main beam brightness temperature.

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