/ftp/cats/vi/130



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VI/130              High accuracy computed H2D+ line list - ST1   (Sochi+, 2010)
The following files can be converted to FITS (extension .fit or fit.gz)
	level.dat trans.dat
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=VI/130
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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 470 Dec 19 2022 .message -r--r--r-- 1 cats archive 5302 Oct 5 2010 ReadMe -r--r--r-- 1 cats archive 402886 Feb 7 2010 level.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 189865578 Feb 7 2010 trans.dat.gz [txt] [txt.gz] [fits] [fits.gz] [html] -rw-r--r-- 1 cats archive 434 Jun 2 2010 trans.hdr
Beginning of ReadMe : VI/130 High accuracy computed H2D+ line list - ST1 (Sochi+, 2010) ================================================================================ A computed line list for the H2D+ molecular ion. Sochi T., Tennyson J. <Mon. Not. R. Astron. Soc., 405, 2345-2350 (2010)> =2010MNRAS.405.2345S ================================================================================ ADC_Keywords: Atomic physics Keywords: molecular spectra - discrete variable representation - H2D+ - infrared - rotation-vibration transitions - line list - partition function - cooling function Abstract: A comprehensive, calculated line list of frequencies and transition probabilities for the singly deuterated isotopologue of H_3_^+^, H_2_D^+^, is presented. The line list, called ST1, contains over 22 million rotational-vibrational transitions occurring between more than 33 thousand energy levels; it covers frequencies up to 18500cm-1. All energy levels with rotational quantum number, J, up to 20 are considered, making the line list useful for temperatures up to at least 3000K. About 15% of these levels are fully identified with six rotational and vibrational quantum numbers. The list is calculated using a previously proposed, high accuracy, ab initio model and consistency checks are carried out to test and validate the results. These checks confirm the accuracy of the list. A temperature-dependent partition function, valid over a more extended temperature range than those previously published, and cooling function are presented. Description: The data are in two parts. The first part is the levels file (i.e. level.dat) which contains a list of 33330 energy levels, ordered by J and symmetry block. 5000 of these levels are fully designated with 3 rotational (J,Ka,Kc) and 3 vibrational (v1,v2,v3) quantum numbers, while 341 levels are identified with rotational quantum numbers only. The second part of the list is the transitions file (i.e. trans.dat file) which contains 22164810 entries. Each transition refer to upper and lower energy levels in the levels file and provides the Einstein A coefficient for the transition.