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Home All issues Volume 652 (August 2021) A&A, 652 (2021) L9 Full HTML
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Table A.1.

Observed line parameters of benzyne.

Transition νpred a νobs b ∫ dv c vLSR d Δv e f N
(MHz) (MHz) (mK km s−1) (km s−1) (km s−1) (mK)
ortho state
41, 3 − 32, 2 33482.756(1) 33482.786(30) 0.34(07) 5.56(07) 0.66(18) 0.48(17)
51, 5 − 40, 4 34556.013(2) 35556.013(30) 0.36(10) 5.83(09) 0.63(18) 0.55(18)
33, 1 − 22, 0 38564.042(1) 38564.054(30) 0.74(15) 5.74(07) 0.68(17) 1.02(20)
60, 6 − 51, 5 40828.169(4) 40828.169(20) 0.54(11) 5.83(05) 0.45(10) 1.19(22)
52, 4 − 41, 3 41169.208(2) 41169.205(20) 0.56(13) 5.85(07) 0.48(12) 1.09(24)
61, 5 − 52, 4 47082.207(4) 47082.207(30) 0.87(30) 5.83(16) 0.87(30) 0.94(27)
71, 7 − 60, 6 47109.298(7) 47109.345(30) 1.91(25) 5.53(10) 1.02(15) 1.77(35) A
para state
50, 5 − 41, 4 34543.093(2) ≤0.70
42, 3 − 31, 2 35656.830(1) ≤0.75
51, 4 − 42, 3 40595.926(2) 40595.919(30) 0.16(08) 5.90(12) 0.40(15) 0.47(17)
61, 6 − 50, 5 40829.994(4) 40830.000(30) 0.55(19) 5.79(13) 0.78(39) 0.67(27)
33, 0 − 22, 1 41071.944(1) B
43, 2 − 32, 1 45028.539(1) ≤0.75
70, 7 − 61, 6 47109.056(7) 47109.044(20) 1.63(21) 5.90(08) 0.80(13) 1.92(27) C
62, 5 − 51, 4 47197.685(4) 47197.708(30) 0.45(11) 5.72(20) 0.45(15) 0.95(26)

Notes. Values between parentheses correspond to the uncertainties of the parameters in units of the last significant digits. Upper limits correspond to 3σ values.

(a)

Predicted frequency from the rotational and distortion constants derived from a fit to the lines observed by Brown et al. (1986), Kukolich et al. (2003), and Robertson et al. (2003).

(b)

Observed frequency assuming a vLSR of 5.83 km s−1.

(c)

Integrated line intensity in mK km s−1.

(d)

vLSR assuming that the predicted frequencies are the rest frequencies of the lines (in km s−1).

(e)

Line width at half intensity derived by fitting a Gaussian function to the observed line profile (in km s−1).

(f)

Antenna temperature in millikelvin.

(A)

Possibly a blend with a U line at +35 kHz of the predicted frequency.

(B)

Blended with a line of D13CCCN. Fit unreliable.

(C)

Blended with a line of CH2CHCH3 with an expected intensity of 0.5 mK.

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