000 03912nab a2200373 c 4500
001 vtls000553983
003 RU-ToGU
005 20231128152713.0
007 cr |
008 181202|2016 xxu s a eng dd
024 7 _a10.1016/j.jms.2016.04.006
_2doi
035 _ato000553983
040 _aRU-ToGU
_brus
_cRU-ToGU
245 1 0 _aTheoReTS - An information system for theoretical spectra based on variational predictions from molecular potential energy and dipole moment surfaces
_cM. Rey, A. V. Nikitin, Y. L. Babikov, V. G. Tyuterev
504 _aБиблиогр.: 240 назв.
520 3 _aKnowledge of intensities of rovibrational transitions of various molecules and theirs isotopic species in wide spectral and temperature ranges is essential for the modeling of optical properties of planetary atmospheres, brown dwarfs and for other astrophysical applications. TheoReTS (“Theoretical Reims–Tomsk Spectral data”) is an Internet accessible information system devoted to ab initio based rotationally resolved spectra predictions for some relevant molecular species. All data were generated from potential energy and dipole moment surfaces computed via high-level electronic structure calculations using variational methods for vibration–rotation energy levels and transitions. When available, empirical corrections to band centers were applied, all line intensities remaining purely ab initio . The current TheoReTS implementation contains information on four-to-six atomic molecules, including phosphine, methane, ethylene, silane, methyl-fluoride, and their isotopic species 13CH413CH4, 12CH3D12CH3D, 12CH2D212CH2D2, 12CD412CD4, View the MathML source13C2H4,…. Predicted hot methane line lists up to T = 2000 K are included. The information system provides the associated software for spectra simulation including absorption coefficient, absorption and emission cross-sections, transmittance and radiance. The simulations allow Lorentz, Gauss and Voight line shapes. Rectangular, triangular, Lorentzian, Gaussian, sinc and sinc squared apparatus function can be used with user-defined specifications for broadening parameters and spectral resolution. All information is organized as a relational database with the user-friendly graphical interface according to Model-View-Controller architectural tools. The full-featured web application is written on PHP using Yii framework and C++ software modules. In case of very large high-temperature line lists, a data compression is implemented for fast interactive spectra simulations of a quasi-continual absorption due to big line density. Applications for the TheoReTS may include: education/training in molecular absorption/emission, radiative and non-LTE processes, spectroscopic applications, opacity calculations for planetary and astrophysical applications. The system is freely accessible via internet on the two mirror sites: in Reims, France (http://theorets.univ-reims.fr) and in Tomsk, Russia (http://theorets.tsu.ru).
653 _aуглеводороды
653 _aметан
653 _aэтилен
653 _aфосфин
653 _aTheoReTS, информационная система
653 _aспектроскопия
653 _aдипольные моменты
655 4 _aстатьи в журналах
_9879358
700 1 _aRey, Michal
_9112225
700 1 _aBabikov, Yurii L.
_9270532
700 1 _aTyuterev, Vladimir G.
_996138
700 1 _aNikitin, Andrei V.
_996598
773 0 _tJournal of molecular spectroscopy
_d2016
_gVol. 327. P. 138-158
_x0022-2852
852 4 _aRU-ToGU
856 7 _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000553983
908 _aстатья
999 _c409284