J/MNRAS/451/634 ExoMol line lists for NaH and NaD (Rivlin+, 2015)
ExoMol molecular line lists.
X: The spectrum of sodium hydride.
Rivlin T., Lodi L., Yurchenko S.N., Tennyson J., Le Roy R.J.
<Mon. Not. R. Astron. Soc. 451, 634 (2015)>
=2015MNRAS.451..634R 2015MNRAS.451..634R
ADC_Keywords: Atomic physics
Keywords: molecular data - opacity - astronomical data bases: miscellaneous -
planets and satellites: atmospheres - stars: low-mass
Abstract:
Accurate and complete rotational-vibrational and
rotational-vibrational- electronic line lists are calculated for
sodium hydride: both NaH and NaD isotopologue are considered. These
line lists cover all ro- vibrational states of the ground
(X1Σ+) and first excited electronic states. The calculations
use available spectroscopically- determined potential energy curves
and new high-quality, ab initio dipole moment curves. Partition
functions for both isotopologues are calculated and the effect of
quasibound states is considered. The resulting line lists are suitable
for temperatures up to about 7000K and are designed for studies of
exoplanet atmospheres, brown dwarfs and cool stars. In particular the
NaH A-X band is found to show a strong at about 385nm which
should provide a signature for the molecule. All partition functions,
lines and transitions are available as Supplementary Information to
this article and at www.exomol.com.
Description:
The data for each isotopologue are in two parts. The first, .states
contains a list of rovibronic states. Each state is labelled with the
total angular momentum, state degeneracy, vibrational quantum number,
and an electronic state label (A/X). Each state has a unique number,
which is the number of the row in which it appears in the file. This
number is the means by which the state is related to the second part
of the data system, the transitions files.
The transition files contain three columns: the reference number in
the energy file of the upper state; that of the lower state; and the
Einstein A coefficient of the transition.
A sample programme to generate synthetic spectra from the ExoMol
format line lists can be obtained at www.exomol.com.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
nahstate.dat 54 3339 Labelled rovibronic states for NaH
nadstate.dat 54 5960 Labelled rovibronic states for NaD
nahtrans.dat 42 79898 Transition file for NaH
nadtrans.dat 42 167224 Transition file for NaD
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See also:
J/MNRAS/425/34 : ExoMol line lists for BeH, MgH and CaH (Yadin+, 2012)
J/MNRAS/434/1469 : ExoMol line lists for SiO (Barton+, 2013)
J/MNRAS/437/1828 : ExoMol line list for HCN and HNC (Barber+, 2014)
J/MNRAS/440/1649 : ExoMol line lists for CH4 (Yurchenko+, 2014)
J/MNRAS/442/1821 : ExoMol line list for KCl (Barton+, 2014)
J/MNRAS/445/1383 : ExoMol line list for phosphorus nitride (PN) (Yorke+, 2014)
J/MNRAS/446/2337 : ExoMol line lists for PH3 (Sousa-Silva+, 2015)
J/MNRAS/448/1704 : ExoMol line lists for H2CO (Al-Refaie+, 2015)
J/MNRAS/449/3613 : ExoMol line lists for AlO (Patrascu+, 2015)
Byte-by-byte Description of file: nahstate.dat nadstate.dat
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Bytes Format Units Label Explanations
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9- 12 I4 --- N [1/5960] State ID, non-negative integer index
14- 25 F12.6 cm-1 E [0/37300] State energy term value in cm-1
29- 32 I4 --- g [8/4116] Total state degeneracy
36- 40 F5.1 --- J [0/171] J-quantum number J$ is the total angular
momentum excluding nuclear spin
44 A1 --- State [X/A] Notation of the electronic state
53- 54 I2 --- v [0/34] State vibrational quantum number
-------------------------------------------------------------------------------
Byte-by-byte Description of file: nahtrans.dat nadtrans.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
5- 8 I4 --- N1 [2/5960] Upper state ID
13- 16 I4 --- N0 [1/5959] Lower state ID
21- 30 E10.5 s-1 A Einstein A-coefficient of the transition
33- 42 F10.4 cm-1 nu [0.3/30291] Transition wavenumber
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Acknowledgements:
S.N. Yurchenko, s.yurchenko(at)ucl.ac.uk
J. Tennyson, j.tennyson(at)ucl.ac.uk
History:
This reference was in first labelled J/MNRAS/451/5153, and the
page number has changed into 634.
References:
Tennyson & Yurchenko, 2012MNRAS.425...21T 2012MNRAS.425...21T
Yadin et al., Paper I, 2012MNRAS.425...34Y 2012MNRAS.425...34Y, Cat. J/MNRAS/425/34
Barton et al., Paper II 2013MNRAS.434.1469B 2013MNRAS.434.1469B, Cat. J/MNRAS/434/1469
Barber et al., Paper III 2014MNRAS.437.1828B 2014MNRAS.437.1828B, Cat. J/MNRAS/437/1828
Yurchenko & Tennyson, Paper IV 2014MNRAS.440.1649Y 2014MNRAS.440.1649Y, Cat. J/MNRAS/440/1649
Barton et al., Paper V 2014MNRAS.442.1821B 2014MNRAS.442.1821B, Cat. J/MNRAS/442/1821
Yorke et al., Paper VI 2014MNRAS.445.1383Y 2014MNRAS.445.1383Y, Cat. J/MNRAS/445/1383
Sousa-Silva et al., Paper VII 2015MNRAS.446.2337S 2015MNRAS.446.2337S, Cat. J/MNRAS/446/2337
Al-Refaie et al., Paper VIII 2015MNRAS.448.1704A 2015MNRAS.448.1704A, Cat. J/MNRAS/448/1704
Patrascu et al., Paper IX 2015MNRAS.449.3613P 2015MNRAS.449.3613P, Cat. J/MNRAS/449/3613
(End) Patricia Vannier [CDS] 05-May-2015