/ftp/cats/vi/127



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VI/127              High accuracy line list of HDO           (Voronin+ 2009)
The following files can be converted to FITS (extension .fit or fit.gz)
	levels.dat *.txt
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=VI/127
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drwxr-xr-x 141 cats archive 4096 Sep 6 2023 [Up] drwxr-xr-x 2 cats archive 4096 Jan 12 2023 [TAR file] -rw-r--r-- 1 cats archive 463 Dec 19 2022 .message -r--r--r-- 1 cats archive 7760 Apr 15 2011 ReadMe -r--r--r-- 1 cats archive 1219559 Dec 16 2009 VTT.pdf -r--r--r-- 1 cats archive 180697994 Dec 15 2009 00000-00250.txt.bz2 -r--r--r-- 1 cats archive 177580357 Dec 15 2009 00250-00500.txt.bz2 -r--r--r-- 1 cats archive 173120690 Dec 15 2009 00500-00750.txt.bz2 -r--r--r-- 1 cats archive 168378733 Dec 15 2009 00750-01000.txt.bz2 -r--r--r-- 1 cats archive 322545614 Dec 15 2009 01000-01500.txt.bz2 -r--r--r-- 1 cats archive 303153429 Dec 15 2009 01500-02000.txt.bz2 -r--r--r-- 1 cats archive 144810844 Dec 15 2009 02000-02250.txt.bz2 -r--r--r-- 1 cats archive 276715908 Dec 15 2009 02250-02750.txt.bz2 -r--r--r-- 1 cats archive 383091039 Dec 15 2009 02750-03500.txt.bz2 -r--r--r-- 1 cats archive 455348529 Dec 15 2009 03500-04500.txt.bz2 -r--r--r-- 1 cats archive 395592571 Dec 15 2009 04500-05500.txt.bz2 -r--r--r-- 1 cats archive 492506159 Dec 15 2009 05500-07000.txt.bz2 -r--r--r-- 1 cats archive 494162141 Dec 15 2009 07000-09000.txt.bz2 -r--r--r-- 1 cats archive 646558082 Dec 15 2009 09000-14000.txt.bz2 -r--r--r-- 1 cats archive 193405457 Dec 15 2009 14000-20000.txt.bz2 -r--r--r-- 1 cats archive 14278516 Dec 15 2009 20000-26000.txt.bz2 -r--r--r-- 1 cats archive 8665023 Dec 22 2009 levels.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats nogroup 13855 Dec 22 2009 readme-spectra-VTT -r--r--r-- 1 cats archive 2343 Jul 22 2009 sample-spectra-out -r--r--r-- 1 cats archive 423 Jul 22 2009 spec.job -r--r--r-- 1 cats archive 55692 Jul 22 2009 spectra-VTT.f90
Beginning of ReadMe : VI/127 High accuracy line list of HDO (Voronin+ 2009) ================================================================================ A high accuracy computed line list for the HDO molecule Voronin B.A., Tennyson J., Tolchenov R.N., Lugovskoy A.A., Yurchenko S.N. <Mon. Not. R. Astron. Soc. (2009)> =2010MNRAS.402..492V ================================================================================ ADC_Keywords: Atomic physics Keywords: line: identification - molecular data - techniques: spectroscopic - astronomical data bases: miscellaneous - infrared: genera Abstract: A computed list of HD^16^O infrared transition frequencies and intensities is presented. The list, VTT, was produced using a discrete variable representation two-step approach for solving the rotation-vibration nuclear motions. The VTT line list contains almost 700 million transitions and can be used to simulate spectra of mono-deuterated water over the entire temperature range that are of importance for astrophysics. The line list can be used for deuterium-rich environments, such as the atmosphere of Venus, and to construct a possible "deuterium test" to distinguish brown dwarfs from planetary mass objects. Description: The data are in two parts. The first, the 'Levels File' (levels.dat) is a list of 163,491 energy levels, ordered by J and symmetry block. Most part of these energy levels have been labelled with the appropriate angular momentum (J,Ka,Kc) and vibrational (v1,v2,v3) quantum numbers. The second part of VTT is the 'Transitions File'. This has 697.454.528 entries. Each transition references upper and lower energy levels in the Levels File and gives the Einstein Aif coefficient for the transition. In uncompressed form the VTT Transitions File is 15.6 Gb of data. Therefore, in order to facilitate use of the list, the transitions have been ordered by frequency and separated into 16 smaller files, each representing a specific frequency range. These have labels of the form 00000-00250-VTT.txt where the two five digit numbers represent the lower and upper ends of the frequency range for that particular file. These files are zipped and need to be unzipped using the command 'bunzip2 filename'. In addition to the files containing the actual line list, we have provided a Fortran program, spectra-VTT.f90 that will enable users to generate emission or absorption spectra from VTT by specifying various parameters including: temperature, frequency range, cut-off intensity and line width. There is also the facility to generate spectra with full ro-vibrational assignments if required. The method of using spectra-VTT is detailed in a readme-spectra file and there are also examples of a job file and an output file. It is ESSENTIAL to rename or else set up a symbolic link to the Levels File as: 'fort.80'. Also, spectra-VTT.f90 expects a single input transitions file, so if the frequency range required spans more than one of the frequency-ordered files, these must be concatenated to form a single file. In any event, it is ESSENTIAL to rename or else set up a symbolic link to the file containing the transitions as: 'fort.13'