Laboratory characterization and astrophysical detection of vibrationally excited states of vinyl cyanide in Orion-KL

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Volume 572 (December 2014)

A&A, 572 (2014) A44

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Table A.4

Spectroscopic constants in the effective rotational Hamiltonian for the ν₉ and 4ν₁₁ excited vibrational states of vinyl cyanide.

	ν₉	4ν₁₁


A/MHz	49 828.53(89)^a	47 495.5(22)
B/MHz	4953.0854(34)	5047.5125(98)
C/MHz	4501.1911(18)	4545.1778(85)

Δ_J/kHz	2.2025(18)	2.3223(66)
Δ_JK/kHz	–92.279(81)	-56.27(34)
Δ_K/kHz	2500.(135)	–87.(529)
δ_J/kHz	0.4392(11)	0.4766(46)
δ_K/kHz	11.17(53)	28.9(48)

Φ_J/Hz	0.00469(72)	0.0368(68)
Φ_JK/Hz	–2.22(36)	5.3(31)
Φ_KJ/Hz	–28.6(17)	–32.(13)
Φ_K/Hz	[0.]	104900.(42879)
φ_J/Hz	0.00145(38)	–0.0185(36)
φ_JK/Hz	–0.93(18)	7.6(18)
φ_K/Hz	–159.(48)	1131.(532)

N _lines ^b	373,7	225,17
σ_fit/MHz	0.167	0.250
σ _rms	1.665	2.496

Notes.

^(a)

Round parentheses enclose standard errors in units of the last quoted digit of the value of the constant; square parentheses enclose assumed values.

^(b)

The number of distinct frequency fitted lines and the number of confidently assigned lines rejected at the 10σ fitting criterion of the SPFIT program.

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