J/A+A/622/A82 n-propyl cyanide vibrational states (Liu+, 2019)
Rotational rest frequency of the low lying vibrational states of n-propyl
cyanide from extensive laboratory measurements up to 506 GHz.
Liu D., Walters A., Wehres N., Lewen F., Schlemmer S., Mueller H.S.P.
<Astron. Astrophys. 622, A82 (2019)>
=2019A&A...622A..82L 2019A&A...622A..82L (SIMBAD/NED BibCode)
ADC_Keywords: Atomic physics
Keywords: molecular data - line: identification - astrochemistry -
methods: laboratory: molecular - ISM: molecules - submillimeter: ISM
Abstract:
The spectra of four low-lying vibrational states of both anti and
gauche conformers of n-propyl cyanide were previously measured and
analyzed in two spectral windows between 36 and 127GHz. All states
were then identified in a spectral line survey called Exploring
Molecular Complexity with ALMA (EMoCA) toward Sagittarius B2(N)
between 84.1 and 114.4GHz with the Atacama Large
Millimeter/Submillimeter Array (ALMA) in its Cycles 0 and 1.
We wanted to complete the measurements and analysis up to 506GHz to
provide accurate predictions over a much wider range of frequencies,
quantum numbers and energies.
We recorded new laboratory spectra between 150-270GHz and between
310-506GHz. We carried out analysis over the whole range of
measurements available from 36GHz.
For the gauche conformer a large number of both a- and b- type
transitions were measured, for the anti conformer transitions were
predominantly, but not exclusively, a- type We hence improved
molecular parameters for the ground state of both anti- and gauche-
n-propyl cyanide and for excited vibrational states of the
gauche-conformer (v30=1, v29=1, v28=1, v30=2) and anti-conformer
(v30=1, v18=1, v29=1, v30=2) with high order coupling parameter
determined between v18=1 and v30=2. Parameters are published for the
first time for v18=v30=1 for the anti conformer and for v29=v30=1 for
the gauche conformer.
In total 15385 lines have been incorporated in the fits and should
allow good predictions for unperturbed lines over the whole operating
range of radio-telescopes. Evidence is found for vibrational coupling
for some levels above 380GHz. The coupling between v30=2 and v18=1
of the anti conformer has been well characterized. An additional list
of 740 lines showing probable but as yet unidentified coupling has
been provided for astrophysical identification.
Description:
All lines measured (including previously measured data) for n-PrCN
compared with the predictions made from the best parameter set
resulting from a fit (SPFIT - Prckett H.). Lines confidently assigned
but showing systematical residuals are not included in the fit but
listed in separate tables as are lines above safe quantum number
limits. the measurements were carried out at University of Cologne, in
frequency ranges of 36-70, 89.25-126.75, 171-251 and 310-506GHz.
During all measurements we used frequency modulation/demodulation with
a Schottky diode detector and lock-in amplifier. The source power was
provided by:
36-70GHz: Agilent E8257 D directly as source.
89.25-126.75GHz: a VDI tripler driven by a R&S SMF 100A synthesizer.
171-251GHz: a VDI WR9.0THz starter kit (18 times multiplication)
driven by SMF 100 A synthesizer.
310-506GHz: a VDI WR9.0THz starter kit (36 times multiplication)
driven by SMF 100 A synthesizer.
Previous data included in the fits:
Ground states of the both conformer:
1982ZNA....37..199D 1982ZNA....37..199D, 1988ZNA....47..338V 1988ZNA....47..338V, 1988JMoSp.127..178W 1988JMoSp.127..178W summarized by
Belloche et al. (2009A&A...499..215B 2009A&A...499..215B)
4 lowest-lying states of each conformer:
Mueller et al. (2016A&A...595A..87M 2016A&A...595A..87M) below 126.75GHz
File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table10.dat 137 2199 Fitted transitions of ground state, a-n-PrCN
table11.dat 137 3505 Fitted transitions of ground state, g-n-PrCN
table12.dat 137 6314 Fitted transitions of v30 = 1 & 2, g-n-PrCN
table13.dat 116 154 Confidently assigned lines removed from fit,
for v30 = 2, g-n-PrCN
table14.dat 137 2856 Fitted transitions of v29 = 1, g-n-PrCN
table15.dat 116 65 Confidently assigned lines removed from fit,
for v29 = 1, g-n-PrCN
table16.dat 137 1186 Fitted transitions of v28 = 1, g-n-PrCN
table17.dat 116 72 List of the transitions with residuals to be
fitted in the v28 = 1 vibrational state of
gauche-normal-propyl cyanide
table18.dat 116 1888 Fitted transitions of v29 = v30 = 1, g-n-PrCN
table19.dat 116 154 Confidently assigned lines removed from fit,
for v29 = v30 = 1, g-n-PrCN
table20.dat 137 4481 Fitted transitions of v30 = 1 & 2, v18 = 1,
a-n-PrCN
table21.dat 116 646 Confidently assigned lines removed from fit,
for v30 = 1, 2 and v18 = 1, a-n-PrCN
table22.dat 137 947 Fitted transitions of v29 = 1, a-n-PrCN
table23.dat 116 198 Confidently assigned lines removed from fit,
for v29 = 1, a-n-PrCN
table24.dat 116 612 Fitted transitions of v18 = v30 = 1, a-n-PrCN
table25.dat 116 133 List of the transitions with residuals to be
fitted in the v18 = v30 = 1 vibrational states
of anti-normal-propyl cyanide
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table10.dat table11.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- No No. of the transition measured
6- 8 I3 --- J' Upper J quantum number
9- 11 I3 --- Ka' Upper Ka quantum number
12- 14 I3 --- Kc' Upper Kc quantum number
15- 17 I3 --- I' [0/1] Identifier of the upper level (1)
18- 20 I3 --- F' Upper F quantum number
(for Hyperfine Structure, HFS)
21- 23 I3 --- J" Lower J quantum number
24- 26 I3 --- Ka" Lower Ka quantum number
27- 29 I3 --- Kc" Lower Kc quantum number
30- 32 I3 --- I" [0/1] Identifier of the lower level (1)
33- 35 I3 --- F" Lower F quantum number (for HFS)
44- 55 F12.5 MHz MF Measured frequency
58- 69 F12.5 MHz PF Predicted frequency
73- 80 F8.5 MHz Res1 Residual = MF - PF (for single lines)
85- 91 F7.5 MHz U Uncertainty of the transition
94-105 F12.5 MHz AF ? Weighted Average of Predictions
(for multi-transitions sharing one line)
109-116 F8.5 MHz Res2 ? Residual = MF - AF
(for multi-transitions sharing one line)
119-137 A19 --- Ref Previous measurements,
the reference is coded with Bibcode
--------------------------------------------------------------------------------
Note (1): For the identifier, 0 is for transitions without HFS, 1 with HFS.
Transitions that cannot be resolved therefore sharing one line are
calculated with a mean frequencies (by weighted average to the intensities
of their predictions), and then compared to the measurement.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table12.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- No. No. of the transition measured
6- 8 I3 --- J' Upper J quantum number
9- 11 I3 --- Ka' Upper Ka quantum number
12- 14 I3 --- Kc' Upper Kc quantum number
15- 17 I3 --- I' [0/3] Identifier of the upper level (2)
18- 20 I3 --- F' Upper F quantum number
(for Hyperfine Structure, HFS)
21- 23 I3 --- J" Lower J quantum number
24- 26 I3 --- Ka" Lower Ka quantum number
27- 29 I3 --- Kc" Lower Kc quantum number
30- 32 I3 --- I" [0/3] Identifier of the lower level (2)
33- 35 I3 --- F" Lower F quantum number (for HFS)
44- 55 F12.5 MHz MF Measured frequency
58- 69 F12.5 MHz PF Predicted frequency
73- 80 F8.5 MHz Res1 Residual = MF - PF (for single lines)
85- 91 F7.5 MHz U Uncertainty of the transition
94-105 F12.5 MHz AF ? Weighted Average of Predictions
(for multi-transitions sharing one line)
109-116 F8.5 MHz Res2 ? Residual = MF - AF
(for multi-transitions sharing one line)
119-137 A19 --- Ref Previous measurements,
the reference is coded with Bibcode
--------------------------------------------------------------------------------
Note (2): For identifiers,
0 = v30 = 1 without hyperfine splits
2 = v30 = 1 with hyperfine splits
1 = v30 = 2 without hyperfine splits
3 = v30 = 2 with hyperfine splits
Transitions that cannot be resolved therefore sharing one line are calculated
with a mean frequencies (by weighted average to the intensities
of their predictions), and then compared to the measurement.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table13.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- No. No. of the transition measured
6- 8 I3 --- J' Upper J quantum number
9- 11 I3 --- Ka' Upper Ka quantum number
12- 14 I3 --- Kc' Upper Kc quantum number
15- 17 I3 --- I' [1] Identifier of the upper level (3)
18- 20 I3 --- F' Upper F quantum number
(for Hyperfine Structure, HFS)
21- 23 I3 --- J" Lower J quantum number
24- 26 I3 --- Ka" Lower Ka quantum number
27- 29 I3 --- Kc" Lower Kc quantum number
30- 32 I3 --- I" [1] Identifier of the lower level (3)
33- 35 I3 --- F" Lower F quantum number (for HFS)
44- 55 F12.5 MHz MF Measured frequency
58- 69 F12.5 MHz PF Predicted frequency
73- 80 F8.5 MHz Res1 Residual = MF - PF (for single lines)
85- 91 F7.5 MHz U Uncertainty of the transition
94-105 F12.5 MHz AF ? Weighted Average of Predictions
(for multi-transitions sharing one line)
109-116 F8.5 MHz Res2 ? Residual = MF - AF
(for multi-transitions sharing one line)
--------------------------------------------------------------------------------
Note (3): For identifiers, v30 = 2 without hyperfine splits were coded 1.
Transitions that cannot be resolved therefore sharing one line are calculated
with a mean frequencies (by weighted average to the intensities
of their predictions), and then compared to the measurement.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table14.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- No. No. of the transition measured
6- 8 I3 --- J' Upper J quantum number
9- 11 I3 --- Ka' Upper Ka quantum number
12- 14 I3 --- Kc' Upper Kc quantum number
15- 17 I3 --- I' [0/1] Identifier of the upper level (1)
18- 20 I3 --- F' Upper F quantum number
(for Hyperfine Structure, HFS)
21- 23 I3 --- J" Lower J quantum number
24- 26 I3 --- Ka" Lower Ka quantum number
27- 29 I3 --- Kc" Lower Kc quantum number
30- 32 I3 --- I" [0/1] Identifier of the lower level (1)
33- 35 I3 --- F" Lower F quantum number (for HFS)
44- 55 F12.5 MHz MF Measured frequency
58- 69 F12.5 MHz PF Predicted frequency
73- 80 F8.5 MHz Res1 Residual = MF - PF (for single lines)
82- 91 F10.5 MHz U Uncertainty of the transition (2)
94-105 F12.5 MHz AF ? Weighted Average of Predictions
(for multi-transitions sharing one line)
109-116 F8.5 MHz Res2 ? Residual = MF - AF
(for multi-transitions sharing one line)
119-137 A19 --- Ref The transition measured before,
the reference is coded with Bibcode
--------------------------------------------------------------------------------
Note (1): For identifiers, v29 = 1 for g-n-PrCN, transitions without HFS
were coded 0, with HFS coded 1.
Transitions that cannot be resolved therefore sharing one line are calculated
with a mean frequencies (by weighted average to the intensities
of their predictions), and then compared to the measurement.
Note (2): For the transitions measured in 2016A&A...595A..87M 2016A&A...595A..87M which cannot
be assigned in this work due to bad qualities, we gave 9999 before U
(the uncertainties), but reserved the measurements.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table15.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- No. No. of the transition measured
6- 8 I3 --- J' Upper J quantum number
9- 11 I3 --- Ka' Upper Ka quantum number
12- 14 I3 --- Kc' Upper Kc quantum number
15- 17 I3 --- I' [0] Identifier of the upper level (1)
18- 20 I3 --- F' Upper F quantum number
(for Hyperfine Structure, HFS)
21- 23 I3 --- J" Lower J quantum number
24- 26 I3 --- Ka" Lower Ka quantum number
27- 29 I3 --- Kc" Lower Kc quantum number
30- 32 I3 --- I" [0] Identifier of the lower level (1)
33- 35 I3 --- F" Lower F quantum number (for HFS)
44- 55 F12.5 MHz MF Measured frequency
58- 69 F12.5 MHz PF Predicted frequency
73- 80 F8.5 MHz Res1 Residual = MF - PF (for single lines)
85- 91 F7.5 MHz U Uncertainty of the transition
94-105 F12.5 MHz AF ? Weighted Average of Predictions
(for multi-transitions sharing one line)
109-116 F8.5 MHz Res2 ? Residual = MF - AF
(for multi-transitions sharing one line)
--------------------------------------------------------------------------------
Note (1): For identifiers, v29 = 1 without hyperfine splits were coded 0.
Transitions that cannot be resolved therefore sharing one line are calculated
with a mean frequencies (by weighted average to the intensities
of their predictions), and then compared to the measurement.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table16.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- No. No. of the transition measured
6- 8 I3 --- J' Upper J quantum number
9- 11 I3 --- Ka' Upper Ka quantum number
12- 14 I3 --- Kc' Upper Kc quantum number
15- 17 I3 --- I' [0/1] Identifier of the upper level (1)
18- 20 I3 --- F' Upper F quantum number
(for Hyperfine Structure, HFS)
21- 23 I3 --- J" Lower J quantum number
24- 26 I3 --- Ka" Lower Ka quantum number
27- 29 I3 --- Kc" Lower Kc quantum number
30- 32 I3 --- I" [0/1] Identifier of the lower level (1)
33- 35 I3 --- F" Lower F quantum number (for HFS)
44- 55 F12.5 MHz MF Measured frequency
58- 69 F12.5 MHz PF Predicted frequency
73- 80 F8.5 MHz Res1 Residual = MF - PF (for single lines)
84- 91 F8.5 MHz U Uncertainty of the transition
94-105 F12.5 MHz AF ? Weighted Average of Predictions
(for multi-transitions sharing one line)
109-116 F8.5 MHz Res2 ? Residual = MF - AF
(for multi-transitions sharing one line)
119-137 A19 --- Ref The transition measured before,
the reference is coded with Bibcode
--------------------------------------------------------------------------------
Note (1): For the identifier, 0 is for transitions without HFS, 1 with HFS.
Transitions that cannot be resolved therefore sharing one line are calculated
with a mean frequencies (by weighted average to the intensities
of their predictions), and then compared to the measurement.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table17.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- No. No. of the transition measured
6- 8 I3 --- J' Upper J quantum number
9- 11 I3 --- Ka' Upper Ka quantum number
12- 14 I3 --- Kc' Upper Kc quantum number
15- 17 I3 --- I' [0/1] Identifier of the upper level (1)
18- 20 I3 --- F' Upper F quantum number
(for Hyperfine Structure, HFS)
21- 23 I3 --- J" Lower J quantum number
24- 26 I3 --- Ka" Lower Ka quantum number
27- 29 I3 --- Kc" Lower Kc quantum number
30- 32 I3 --- I" [0/1] Identifier of the lower level (1)
33- 35 I3 --- F" Lower F quantum number (for HFS)
44- 55 F12.5 MHz MF Measured frequency
58- 69 F12.5 MHz PF Predicted frequency
73- 80 F8.5 MHz Res1 Residual = MF - C_F (for single lines)
85- 91 F7.5 MHz U Uncertainty of the transition
94-105 F12.5 MHz AF Weighted Average of Predictions
(for multi-transitions sharing one line)
109-116 F8.5 MHz Res2 Residual = MF - AF
(for multi-transitions sharing one line)
--------------------------------------------------------------------------------
Note (1): For identifiers, v28 = 1 without hyperfine splits were coded 0.
Transitions that cannot be resolved therefore sharing one line are calculated
with a mean frequencies (by weighted average to the intensities
of their predictions), and then compared to the measurement.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table18.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- No. No. of the transition measured
6- 8 I3 --- J' Upper J quantum number
9- 11 I3 --- Ka' Upper Ka quantum number
12- 14 I3 --- Kc' Upper Kc quantum number
15- 17 I3 --- I' [0/1] Identifier of the upper level (1)
18- 20 I3 --- F' Upper F quantum number
(for Hyperfine Structure, HFS)
21- 23 I3 --- J" Lower J quantum number
24- 26 I3 --- Ka" Lower Ka quantum number
27- 29 I3 --- Kc" Lower Kc quantum number
30- 32 I3 --- I" [0/1] Identifier of the lower level (1)
33- 35 I3 --- F" Lower F quantum number (for HFS)
44- 55 F12.5 MHz MF Measured frequency
58- 69 F12.5 MHz PF Predicted frequency
73- 80 F8.5 MHz Res1 Residual = MF - C_F (for single lines)
85- 91 F7.5 MHz U Uncertainty of the transition
94-105 F12.5 MHz AF ? Weighted Average of Predictions
(for multi-transitions sharing one line)
109-116 F8.5 MHz Res2 ? Residual = MF - AF
(for multi-transitions sharing one line)
--------------------------------------------------------------------------------
Note (1): For identifiers, v29 = v30 = 1 for g-n-PrCN, transitions without
HFS were coded 0, with HFS coded 1
Transitions that cannot be resolved therefore sharing one line are calculated
with a mean frequencies (by weighted average to the intensities
of their predictions), and then compared to the measurement.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table19.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- No. No. of the transition measured
6- 8 I3 --- J' Upper J quantum number
9- 11 I3 --- Ka' Upper Ka quantum number
12- 14 I3 --- Kc' Upper Kc quantum number
15- 17 I3 --- I' [0] Identifier of the upper level (1)
18- 20 I3 --- F' Upper F quantum number
(for Hyperfine Structure, HFS)
21- 23 I3 --- J" Lower J quantum number
24- 26 I3 --- Ka" Lower Ka quantum number
27- 29 I3 --- Kc" Lower Kc quantum number
30- 32 I3 --- I" [0] Identifier of the lower level (1)
33- 35 I3 --- F" Lower F quantum number (for HFS)
44- 55 F12.5 MHz MF Measured frequency
58- 69 F12.5 MHz PF Predicted frequency
73- 80 F8.5 MHz Res1 Residual = MF - PF (for single lines)
85- 91 F7.5 MHz U Uncertainty of the transition
94-105 F12.5 MHz AF Weighted Average of Predictions
(for multi-transitions sharing one line)
109-116 F8.5 MHz Res2 Residual = MF - AF
(for multi-transitions sharing one line)
--------------------------------------------------------------------------------
Note (1): For identifiers, v29 = v30 = 1 for g-n-PrCN, transitions without HFS
were coded 0.
Transitions that cannot be resolved therefore sharing one line are calculated
with a mean frequencies (by weighted average to the intensities
of their predictions), and then compared to the measurement.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table20.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- No. No. of the transition measured
6- 8 I3 --- J' Upper J quantum number
9- 11 I3 --- Ka' Upper Ka quantum number
12- 14 I3 --- Kc' Upper Kc quantum number
15- 17 I3 --- I' [0/5] Identifier of the upper level (4)
18- 20 I3 --- F' Upper F quantum number
(for Hyperfine Structure, HFS)
21- 23 I3 --- J" Lower J quantum number
24- 26 I3 --- Ka" Lower Ka quantum number
27- 29 I3 --- Kc" Lower Kc quantum number
30- 32 I3 --- I" [0/5] Identifier of the lower level (4)
33- 35 I3 --- F" Lower F quantum number (for HFS)
44- 55 F12.5 MHz MF Measured frequency
58- 69 F12.5 MHz PF Predicted frequency
73- 80 F8.5 MHz Res1 Residual = MF - PF (for single lines)
85- 91 F7.5 MHz U Uncertainty of the transition
94-105 F12.5 MHz AF ? Weighted Average of Predictions
(for multi-transitions sharing one line)
109-116 F8.5 MHz Res2 ? Residual = MF - AF
(for multi-transitions sharing one line)
119-137 A19 --- Ref The transition measured before,
the reference is coded with Bibcode
--------------------------------------------------------------------------------
Note (4): For identifiers,
v30 = 1 without hyperfine splits were coded 0,
with hyperfine splits were coded 2;
v30 = 2 without hyperfine splits were coded 1,
with hyperfine splits were coded 3;
v18 = 1 for a-n-PrCN, transitions without HFS were coded 4, with HFS coded 5.
Transitions that cannot be resolved therefore sharing one line are calculated
with a mean frequencies (by weighted average to the intensities
of their predictions), and then compared to the measurement.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table21.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- No. No. of the transition measured
6- 8 I3 --- J' Upper J quantum number
9- 11 I3 --- Ka' Upper Ka quantum number
12- 14 I3 --- Kc' Upper Kc quantum number
15- 17 I3 --- I' [0/4] Identifier of the upper level (5)
18- 20 I3 --- F' Upper F quantum number
(for Hyperfine Structure, HFS)
21- 23 I3 --- J" Lower J quantum number
24- 26 I3 --- Ka" Lower Ka quantum number
27- 29 I3 --- Kc" Lower Kc quantum number
30- 32 I3 --- I" [0/4] Identifier of the lower level (5)
33- 35 I3 --- F" Lower F quantum number (for HFS)
44- 55 F12.5 MHz MF Measured frequency
58- 69 F12.5 MHz PF Predicted frequency
73- 80 F8.5 MHz Res1 Residual = MF - PF (for single lines)
85- 91 F7.5 MHz U Uncertainty of the transition
94-105 F12.5 MHz AF Weighted Average of Predictions
(for multi-transitions sharing one line)
109-116 F8.5 MHz Res2 Residual = MF - AF
(for multi-transitions sharing one line)
--------------------------------------------------------------------------------
Note (5): For identifiers, v30 = 1 without hyperfine splits were coded 0;
v30 = 2 without hyperfine splits were coded 1;
v18 = 1 for a-n-PrCN, transitions without HFS were coded 4.
Transitions that cannot be resolved therefore sharing one line are calculated
with a mean frequencies (by weighted average to the intensities
of their predictions), and then compared to the measurement.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table22.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- No. No. of the transition measured
6- 8 I3 --- J' Upper J quantum number
9- 11 I3 --- Ka' Upper Ka quantum number
12- 14 I3 --- Kc' Upper Kc quantum number
15- 17 I3 --- I' [0/2] Identifier of the upper level (6)
18- 20 I3 --- F' Upper F quantum number
(for Hyperfine Structure, HFS)
21- 23 I3 --- J" Lower J quantum number
24- 26 I3 --- Ka" Lower Ka quantum number
27- 29 I3 --- Kc" Lower Kc quantum number
30- 32 I3 --- I" [0/2] Identifier of the lower level (6)
33- 35 I3 --- F" Lower F quantum number (for HFS)
44- 55 F12.5 MHz MF Measured frequency
58- 69 F12.5 MHz PF Predicted frequency
73- 80 F8.5 MHz Res1 Residual = MF - PF (for single lines)
85- 91 F7.5 MHz U Uncertainty of the transition
94-105 F12.5 MHz AF ? Weighted Average of Predictions
(for multi-transitions sharing one line)
109-116 F8.5 MHz Res2 ? Residual = MF - AF
(for multi-transitions sharing one line)
119-137 A19 --- Ref The transition measured before,
the reference is coded with Bibcode
--------------------------------------------------------------------------------
Note (6): For identifiers, v29 = 1 without hyperfine splits were coded 0,
with hyperfine splits were coded 2;
Transitions that cannot be resolved therefore sharing one line are calculated
with a mean frequencies (by weighted average to the intensities
of their predictions), and then compared to the measurement.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table23.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- No. No. of the transition measured
6- 8 I3 --- J' Upper J quantum number
9- 11 I3 --- Ka' Upper Ka quantum number
12- 14 I3 --- Kc' Upper Kc quantum number
15- 17 I3 --- I' [0] Identifier of the upper level (1)
18- 20 I3 --- F' Upper F quantum number
(for Hyperfine Structure, HFS)
21- 23 I3 --- J" Lower J quantum number
24- 26 I3 --- Ka" Lower Ka quantum number
27- 29 I3 --- Kc" Lower Kc quantum number
30- 32 I3 --- I" [0] Identifier of the lower level (1)
33- 35 I3 --- F" Lower F quantum number (for HFS)
44- 55 F12.5 MHz MF Measured frequency
58- 69 F12.5 MHz PF Predicted frequency
73- 80 F8.5 MHz Res1 Residual = MF - PF (for single lines)
85- 91 F7.5 MHz U Uncertainty of the transition
94-105 F12.5 MHz AF ? Weighted Average of Predictions
(for multi-transitions sharing one line)
109-116 F8.5 MHz Res2 ? Residual = MF - AF
(for multi-transitions sharing one line)
--------------------------------------------------------------------------------
Note (1): For identifiers, v29 = 1 without hyperfine splits were coded 0.
Transitions that cannot be resolved therefore sharing one line are calculated
with a mean frequencies (by weighted average to the intensities
of their predictions), and then compared to the measurement.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table24.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- No. No. of the transition measured
6- 8 I3 --- J' Upper J quantum number
9- 11 I3 --- Ka' Upper Ka quantum number
12- 14 I3 --- Kc' Upper Kc quantum number
15- 17 I3 --- I' [0/1] Identifier of the upper level (1)
18- 20 I3 --- F' Upper F quantum number
(for Hyperfine Structure, HFS)
21- 23 I3 --- J" Lower J quantum number
24- 26 I3 --- Ka" Lower Ka quantum number
27- 29 I3 --- Kc" Lower Kc quantum number
30- 32 I3 --- I" [0/1] Identifier of the lower level (1)
33- 35 I3 --- F" Lower F quantum number (for HFS)
44- 55 F12.5 MHz MF Measured frequency
58- 69 F12.5 MHz PF Predicted frequency
73- 80 F8.5 MHz Res1 Residual = MF - PF (for single lines)
85- 91 F7.5 MHz U Uncertainty of the transition
94-105 F12.5 MHz AF ? Weighted Average of Predictions
(for multi-transitions sharing one line)
109-116 F8.5 MHz Res2 ? Residual = MF - AF
(for multi-transitions sharing one line)
--------------------------------------------------------------------------------
Note (1): For identifiers, v18 = v30 = 1 for a-n-PrCN, transitions without
HFS were coded 0, with HFS coded 1
Transitions that cannot be resolved therefore sharing one line are calculated
with a mean frequencies (by weighted average to the intensities
of their predictions), and then compared to the measurement.
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table25.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- No. No. of the transition measured
6- 8 I3 --- J' Upper J quantum number
9- 11 I3 --- Ka' Upper Ka quantum number
12- 14 I3 --- Kc' Upper Kc quantum number
15- 17 I3 --- I' [0] Identifier of the upper level (14)
18- 20 I3 --- F' Upper F quantum number
(for Hyperfine Structure, HFS)
21- 23 I3 --- J" Lower J quantum number
24- 26 I3 --- Ka" Lower Ka quantum number
27- 29 I3 --- Kc" Lower Kc quantum number
30- 32 I3 --- I" [0] Identifier of the lower level (14)
33- 35 I3 --- F" Lower F quantum number (for HFS)
44- 55 F12.5 MHz MF Measured frequency
58- 69 F12.5 MHz PF Predicted frequency
73- 80 F8.5 MHz Res1 Residual = MF - PF (for single lines)
85- 91 F7.5 MHz U Uncertainty of the transition
94-105 F12.5 MHz AF ? Weighted Average of Predictions
(for multi-transitions sharing one line)
109-116 F8.5 MHz Res2 ? Residual = MF - AF
(for multi-transitions sharing one line)
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Note (14): For identifiers, v18 = v30 = 1 for a-n-PrCN,
transitions without HFS were coded 0.
Transitions that cannot be resolved therefore sharing one line are calculated
with a mean frequencies (by weighted average to the intensities
of their predictions), and then compared to the measurement.
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Acknowledgements:
Liu Delong, delong.liu(at)irap.omp.eu
(End) Patricia Vannier [CDS] 28-Nov-2018