J/A+A/425/767 HC5N vibrationally excited states (Yamada+, 2004)
Millimeter-wave spectroscopy of HC5N in vibrationally excited states
below 500cm-1.
Yamada K.M.T., Degli Esposti C., Botschwina P., Foerster P., Bizzocchi L.,
Thorwirth S., Winnewisser G.
<Astron. Astrophys. 425, 767 (2004)>
=2004A&A...425..767Y 2004A&A...425..767Y
ADC_Keywords: Atomic physics
Keywords: molecular data - methods: laboratory - techniques: spectroscopic
radio lines: ISM
Abstract:
The rotational spectrum of the semistable HC5N molecule has been
investigated in the millimeter-wave region for eight excited bending
states which lie below 500cm-1, namely v11=1, 2, 3, and 4,
v10=1, v9=1, (v10=1, v11=1), and (v10=1, v11=2).
Transitions up to J=101-100 were measured, reaching a frequency as
high as 270GHz. The set of spectroscopic constants determined in the
present work makes it possible to predict much improved rest
frequencies of millimeter-wave lines produced by vibrationally excited
HC5N in hot core molecular sources and circumstellar shells. The
Tables list the measured frequencies and the corresponding residuals
of the least-squares analyses of J+1⟵J transitions, with J in the
range 8-100, which occur in the centimeter- and millimeter-wave
regions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 57 50 *Measured transition frequencies and least-squares
residuals for the v11=1 vibrational state of HC5N
table6.dat 44 41 *Measured transition frequencies and least-squares
residuals for the v10=1 vibrational state of HC5N
table7.dat 44 34 *Measured transition frequencies and least-squares
residuals for the v9=1 vibrational state of HC5N
table8.dat 59 31 *Measured transition frequencies and least-squares
residuals for the v11=2 vibrational state of HC5N
table9.dat 79 31 *Measured transition frequencies and least-squares
residuals for the v11=3 vibrational state of HC5N
table10.dat 97 28 *Measured transition frequencies and least-squares
residuals for the v11=4 vibrational state of HC5N
table11.dat 79 26 *Measured transition frequencies and least-squares
residuals for the (v10=1, v11=1) vibrational
state of HC5N
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Note on table5.dat:
Frequencies between 28 and 40GHz are from Hutchinson et al.
(1980, J. Mol. Spectrosc. 82, 394)
Note on table6.dat table7.dat table8.dat table9.dat table10.dat table11.dat:
Frequencies below 40GHz are from Hutchinson et al.
(1980, J. Mol. Spectrosc. 82, 394)
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Byte-by-byte Description of file: table5.dat table6.dat table7.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- J' J' level
5- 7 I3 --- J J level
9- 18 F10.3 MHz Obs1- ? Observed transition frequency for the state (1)
19 A1 --- n_Obs1- [bc] Note on Obs1- (2)
21- 26 F6.3 MHz O-C1- ? Least-squares residual for the state
28- 37 F10.3 MHz Obs1+ ? Observed transition frequency for the state (3)
39- 44 F6.3 MHz O-C1+ ? Least-squares residual for the state (3)
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Note (1): The state is:
(0,1,1)1- for table5.dat
(0,1,0)1- for table6.dat
(1,0,0)1- for table7.dat
Note (2): Note had the following meaning:
b: Blended transitions less weighted in the analysis
c: Transitions from J=11⟵10 to J=37⟵36 are blended with the
corresponding transitions of the (0,0,1)1- state
Note (3): The state is:
(0,1,1)1+ for table5.dat
(0,1,0)1+ for table6.dat
(1,0,0)1+ for table7.dat
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
-------------------------------------------------------------------------------
1- 2 I2 --- J' J' level
4- 5 I2 --- J J level
7- 16 F10.3 MHz Obs0 ? Observed transition frequency for (0,0,2)0 state
18- 23 F6.3 MHz O-C0 ? Least-squares residual for (0,0,2)0 state
25- 34 F10.3 MHz Obs2- ? Observed transition frequency for (0,0,2)2- state
36- 41 F6.3 MHz O-C2- ? Least-squares residual for (0,0,2)2- state
43- 52 F10.3 MHz Obs2+ ? Observed transition frequency for (0,0,2)2+ state
54- 59 F6.3 MHz O-C2+ ? Least-squares residual for (0,0,2)2+ state
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Byte-by-byte Description of file: table9.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- J' J' level
4- 5 I2 --- J J level
7- 16 F10.3 MHz Obs1- ? Observed transition frequency for (0,0,3)1-
state
18- 23 F6.3 MHz O-C1- ? Least-squares residual for (0,0,3)1- state
25- 34 F10.3 MHz Obs3- ? Observed transition frequency for (0,0,3)3-
state
36- 41 F6.3 MHz O-C3- ? Least-squares residual for (0,0,3)3- state
42 A1 --- n_O-C3- [b] Note on O-C3- (G1)
44- 53 F10.3 MHz Obs3+ ? Observed transition frequency for (0,0,3)3+
state
55- 60 F6.3 MHz O-C3+ ? Least-squares residual for (0,0,3)3+ state
61 A1 --- n_O-C3+ [b] Note on O-C3+ (G1)
63- 72 F10.3 MHz Obs1+ ? Observed transition frequency for (0,0,3)1+
state
74- 79 F6.3 MHz O-C1+ ? Least-squares residual for (0,0,3)1+ state
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Byte-by-byte Description of file: table10.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- J' J' level
4- 5 I2 --- J J level
7- 16 F10.3 MHz Obs0 ? Observed transition frequency for (0,0,4)0
state
18- 23 F6.3 MHz O-C0 ? Least-squares residual for (0,0,4)0 state
25- 34 F10.3 MHz Obs2- ? Observed transition frequency for (0,0,4)2-
state
36- 41 F6.3 MHz O-C2- ? Least-squares residual for (0,0,4)2- state
43- 52 F10.3 MHz Obs2+ ? Observed transition frequency for (0,0,4)2+
state
54- 59 F6.3 MHz O-C2+ ? Least-squares residual for (0,0,4)2+ state
61- 70 F10.3 MHz Obs4- ? Observed transition frequency for (0,0,4)4-
state
72- 77 F6.3 MHz O-C4- ? Least-squares residual for (0,0,4)4- state
78 A1 --- n_O-C4- [b] Note on O-C4- (G1)
80- 89 F10.3 MHz Obs4+ ? Observed transition frequency for (0,0,4)4+
state
91- 96 F6.3 MHz O-C4+ ? Least-squares residual for (0,0,4)4+ state
97 A1 --- n_O-C4+ [b] Note on O-C4+ (G1)
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Byte-by-byte Description of file: table11.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- J' J' level
4- 5 I2 --- J J level
7- 16 F10.3 MHz Obs0+ ? Observed transition frequency for (0,1,1)0+
state
18- 23 F6.3 MHz O-C0+ ? Least-squares residual for (0,1,1)0+ state
25- 34 F10.3 MHz Obs0- ? Observed transition frequency for (0,1,1)0-
state
36- 41 F6.3 MHz O-C0- ? Least-squares residual for (0,1,1)0- state
43- 52 F10.3 MHz Obs2- ? Observed transition frequency for (0,1,1)2-
state
54- 59 F6.3 MHz O-C2- ? Least-squares residual for (0,1,1)2- state
60 A1 --- n_O-C2- [b] Note on O-C2- (G1)
62- 71 F10.3 MHz Obs2+ ? Observed transition frequency for (0,1,1)2+
state
73- 78 F6.3 MHz O-C2+ ? Least-squares residual for (0,1,1)2+ state
79 A1 --- n_O-C2+ [b] Note on O-C2+ (G1)
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Global notes:
Note (G1): b: Difference between the observed frequency of an unresolved
doublet and the mean value of the corresponding calculated frequencies
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Acknowledgements: Luca Bizzocchi
(End) Patricia Vannier [CDS] 28-Jun-2004