Laboratory spectroscopic study and astronomical detection of vibrationally excited n-propyl cyanide

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Volume 595 (November 2016)

A&A, 595 (2016) A87

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This article has an erratum: [https://doi.org/10.1051/0004-6361/201935428e]

Table B.1

Selection of lines of gauche propyl cyanide ν₃₀ = 1 covered by the EMoCA survey of Sgr B2(N2).

Transition^a	Frequency	Unc.^b	E_up^c	g_up^d	A_ul^e	σ^f	τ_peak^g	Frequency range^h		I_obsⁱ	I_mod^j	I_all^k
	(MHz)	(kHz)	(K)		(10^-5 s^-1)	(mK)		(MHz)	(MHz)	(K km s^-1)	(K km s^-1)

14_4,11–13_4,10	84 237.836	1	203	58	3.3	158	0.041	84 236.8	84 239.7	9.1(7)^⋆	6.9	6.8
14_2,12–13_2,11	86 394.181	1	199	58	3.8	142	0.044	86 392.9	86395.8	5.9(6)	8.0	8.1
15_7,9–14_7,8	89 850.897	1	218	62	3.4	149	0.073	89 849.9	89 852.4	19.1(5)^⋆	12.9	14.7
15_7,8–14_7,7	89 851.023	1	218	62	3.4	–	–	–	–	–	–	–
15_4,11–14_4,10	91 214.307	1	207	62	4.3	149	0.047	91 213.1	91 215.6	10.6(5)^⋆	8.5	9.3
17_13,4–16_13,3	101 617.584	1	269	70	2.6	141	0.036	101 616.2	101 619.6	8.2(5)^⋆	9.0	9.1
17_13,5–16_13,4	101 617.584	1	269	70	2.6	–	–	–	–	–	–	–
17_11,6–16_11,5	101 650.360	1	252	70	3.7	141	0.056	101 648.9	101 652.3	18.5(5)^⋆	12.0	17.7
17_11,7–16_11,6	101 650.360	1	252	70	3.7	–	–	–	–	–	–	–
17_7,11–16_7,10	101 941.402	1	228	70	5.3	141	0.081	101 939.5	101 944.4	29.6(6)^⋆	20.5	26.3
17_7,10–16_7,9	101 942.099	1	228	70	5.3	–	–	–	–	–	–	–
17_5,12–16_5,11	102 653.203	1	220	70	6.0	141	0.055	102 651.6	102 655.0	18.5(5)^⋆	12.0	12.7
18_6,13–17_6,12	108 236.201	1	228	74	6.8	115	0.056	108 235.3	108 238.2	20.7(4)^⋆	12.4	16.9
19_1,18–18_1,17	108 861.471	1	221	78	7.7	115	0.070	108 859.5	108 863.9	18.3(5)^⋆	16.6	17.6
20_1,20–19_1,19	110 006.258	1	223	82	8.0	123	0.074	110 004.6	110 008.5	22.2(5)^⋆	17.9	20.7
19_3,17–18_3,16	112 165.026	1	224	78	8.3	166	0.068	112 163.4	112 166.8	25.3(6)^⋆	15.6	21.4

Notes.

^(a)

Quantum numbers of the upper and lower levels.

^(b)

Frequency uncertainty.

^(c)

Upper level energy.

^(d)

Upper level degeneracy.

^(e)

Einstein coefficient for spontaneous emission.

^(f)

Measured rms noise level.

^(g)

Peak opacity of the synthetic line.

^(h)

Frequency range over which the emission was integrated.

⁽ⁱ⁾

Integrated intensity of the observed spectrum in brightness temperature scale. The statistical standard deviation is given in parentheses in unit of the last digit. Values marked with a star are used in the population diagram shown in Fig. 6.

^(j)

Integrated intensity of the synthetic spectrum of the selected state.

^(k)

Integrated intensity of the model that contains the contribution of all identified molecules, including n-propyl cyanide and its vibrationally excited states.

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