VI/131 H13CN/HN13C linelist (Harris+, 2008)
A H13CN/HN13C linelist, model atmospheres and synthetic spectra for carbon
stars.
Harris G.J., Larner F.C., Tennyson J., Kaminsky B.M., Pavlenko Ya.V.,
Jones H.R.A.
<Mon. Not. R. Astron. Soc., 390, 143-148 (2008)>
=2008MNRAS.390..143H 2008MNRAS.390..143H
ADC_Keywords: Atomic physics ; Radio lines ; Opacities
Keywords: molecular data - stars: AGB and post-AGB - stars: atmospheres -
stars: carbon - infrared: stars
Abstract:
A linelist of vibration-rotation transitions for 13C substituted HCN
is presented. The line list is constructed using known experimental
levels where available, calculated levels and ab initio line
intensities originally calculated for the major isotopologue.
Synthetic spectra are generated and compared with observations for
cool carbon star WZ Cas. It is suggested that high resolution HCN
spectra recorded near 14um should be particularly sensitive to the
13C-12C ratio.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
enlvs13.dat 74 168110 Energy levels for H13CN/HN13C
h13cnlin.dat 26 11739981 Line list of H13CN/HN13C in spectroscopic format
h13cnlis.dat 104 34179477 Line list of H13CN/HN13C in format for
stellar modelling
dipoles.dat 55 2 Laboratory determined transition dipole and
Herman-Wallice constants for the CN stretch
fundamental and first hot band
decomp13.f90 83 347 FORTRAN code to convert Einstein A coefficients
and energy levels to usable linelist (Version 2.1)
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See also:
VI/121 : Linelist of HCN and HNC (Harris+, 2006)
http://www.tampa.phys.ucl.ac.uk/ftp/astrodata/ : Astrodata and
molecular data from the Department of Physics and Astronomy at
University College London.
Byte-by-byte Description of file: enlvs13.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- Index [1,168110] Unique index number of state
8- 9 I2 --- J [0,60] Rotational quantum number of lower state
11 I1 --- P [0,1] Parity of the lower state
13- 16 I4 --- n [1,2220] Number of lower state in J-parity block
18- 29 F12.6 cm-1 Eai Value of the calculated energy level
31- 32 I2 --- iso [-2,1] Isomer configuration (G1)
34- 35 I2 --- v1 [-2,5] H-(CN) stretch approximate quantum number
37- 38 I2 --- v2 [-2,14] Bend approximate quantum number of state
40- 41 I2 --- l [-2,13] Vibrational angular momentum approximate
quantum number of state
43- 44 I2 --- v3 [-2,5] C-N stretch approximate quantum number
46- 57 F12.6 cm-1 Elab ? Lab/empirical energy of the state
61- 68 E8.3 cm-1 e_Elab ? Estimated error on the lab empirical energy
71 A1 --- n_Elab [ec] Label identifying lab determined (e)
or interpolated (c) data
74 A1 --- f_Elab [IC] Label identifying an Interpolated
or ab initio Calculated energy
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Byte-by-byte Description of file: h13cnlin.dat
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Bytes Format Units Label Explanations
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1- 9 F9.2 0.1nm lambda [7692/999897] Wavelength of the transition
10- 19 E10.3 --- gf gf in absorption
20- 26 F7.3 eV E Energy of the lower state
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Byte-by-byte Description of file: h13cnlis.dat
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Bytes Format Units Label Explanations
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1- 12 F12.6 cm-1 Freq Wavenumber of the transition
13- 25 F13.6 cm-1 E" Energy of the lower state
26- 28 I3 --- J" [0,60] Rotational quantum number of lower state
29- 30 I2 --- P" [0,1] Parity of the lower state (even=1, odd=0)
31- 35 I5 --- n" [1,2195] Number of lower state in J-parity block
36- 38 I3 --- J' [0,60] Rotational quantum number of upper state
39- 40 I2 --- P' [0,1] Parity of the upper state (even=1, odd=0)
41- 45 I5 --- n' [1,2217] Number of upper state in J-parity block
46- 55 E10.3 s-1 A Einstein A coefficient of the transition
56- 62 I7 --- Index" [1/168090] Unique index number of lower state
63- 69 I7 --- Index' [2/168099] Unique index number of upper state
71- 73 I3 --- iso" [-2/1] Isomer configuration of lower state (G1)
74- 76 I3 --- v1" [-2/5] H-(CN) stretch approximate quantum number
of lower state
77- 79 I3 --- v2" [-2/14] Bend approximate quantum number of
lower state
80- 82 I3 --- l" [-2/13] Vibrational angular momentum approximate
quantum number of lower state
83- 85 I3 --- v3" [-2/5] C-N stretch approximate quantum number of
lower state
87- 89 I3 --- iso' [-2/1] Isomer configuration of upper state (G1)
90- 92 I3 --- v1' [-2/5] H-(CN) stretch approximate quantum number
of upper state
93- 95 I3 --- v2' [-2/14] Bend approximate quantum number of
upper state
96- 98 I3 --- l' [-2/13] Vibrational angular momentum approximate
quantum number of upper state
99-101 I3 --- v3' [-2/5] C-N stretch approximate quantum number of
upper state
103-104 A2 --- Lab [ai lb] ab initio (ai) or lab determined (lb)
frequency
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Byte-by-byte Description of file: dipoles.dat
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Bytes Format Units Label Explanations
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1 I1 -- v1' [0] H-C stretch quantum number for upper state
2- 3 I2 -- v2' [0,1] Bend quantum number for upper state
4- 5 I2 -- l' [0,1] vibrational angular momentum
quantum number for upper state
7- 8 I2 -- v3' [1] C-N stretch quantum number for upper state
11- 12 I2 -- v1" [0] H-C stretch quantum number for lower state
13- 14 I2 -- v2" [0,1] Bend quantum number for lower state
15- 16 I2 -- l" [0,1] vibrational angular momentum
quantum number for lower state
17- 18 I2 -- v3" [0] C-N stretch quantum number for lower state
19- 23 F5.1 -- VIF [1] Vibrational intensity factor
24- 32 F9.5 D mu Band transition dipole
33- 41 F9.1 -- q1 First order Herman-Wallace constant
42- 48 F7.1 -- q2 Second order Herman-Wallace constant
49- 55 F7.1 -- qP Perpendicular Herman-Wallace constant
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Global Notes:
Note (G1): the value "iso" indicates the molecule state:
0 = state of H13CN
1 = state of HN13C
-2 = approximate quantum numbers have not been assigned.
History:
* 13-Feb-2009: copied at http://www.tampa.phys.ucl.ac.uk/ftp/astrodata/H13CN
* 10-Sep-2010: Newer version, including the energy levels (enlvs13.dat)
(End) Patricia Vannier [CDS] 13-Feb-2009