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Related papers: A high accuracy computed water line list

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New line lists are presented for the two most abundant water isotopologues; H$_{2}$$^{16}$O and H$_{2}$$^{18}$O. The H$_{2}$$^{16}$O line list extends to 25710 cm$^{-1}$ with intensity stabilities provided via ratios of calculated…

Earth and Planetary Astrophysics · Physics 2020-02-19 Eamon K. Conway , Iouli E. Gordon , Aleksandra A. Kyuberis , Oleg L. Polyansky , Jonathan Tennyson , Nikolai F. Zobov

The recently puplished Barber-Tennyson (BT2) synthetic H$_2$O water line list is the most complete and accurate line list in existence. It is finding application in a wide range of astrophysical environments. UKIRT spectra of comet Tempel…

Astrophysics · Physics 2007-05-23 R. J. Barber , S. Miller , T. S. Stallard , J. Tennyson

An absorption spectrum of H$_2$$^{16}$O at 1950 K is recorded in a premixed methane/air flat flame using a cavity-enhanced optical frequency comb-based Fourier transform spectrometer. 2417 absorption lines are identified in the 6250 -- 6670…

Atmospheric carbon dioxide concentrations are being closely monitored by remote sensing experiments which rely on knowing line intensities with an uncertainty of 0.5% or better. We report a theoretical study providing rotation-vibration…

The discovery of the near infrared windows into the Venus deep atmosphere has enabled the use of remote sensing techniques to study the composition of the Venus atmosphere below the clouds. In particular, water vapor absorption lines can be…

Earth and Planetary Astrophysics · Physics 2015-05-13 Jeremy Bailey

A comprehensive, calculated line list of frequencies and transition probabilities for the singly deuterated isotopologue of H3+, H2D+, is presented. The line list, called ST1, contains over 22 million rotational-vibrational transitions…

Computational Physics · Physics 2010-05-11 Taha Sochi , Jonathan Tennyson

We have conducted a study combining H2O lines in two spectral regions. First, Infrared Space Observatory observations of several H2O thermal lines seen in absorption toward Sgr B2(M) at a spectral resolution of 35 kms^-1 have been analyzed.…

Astrophysics · Physics 2009-11-11 J. Cernicharo , J. R. Goicoechea , J. R. Pardo , A. Asensio Ramos

We present 'BYTe', a comprehensive 'hot' line list for the ro-vibrational transitions of ammonia, 14NH3, in its ground electronic state. This line list has been computed variationally using the program suite TROVE, a new…

Earth and Planetary Astrophysics · Physics 2017-07-03 S. N. Yurchenko , R. J. Barber , J. Tennyson

A new hot line list for the main isotopologue of CO$_2$ is presented. The line list consists of almost 2.5 billion transitions between 3.5 million rotation-vibration states of CO$_2$ in its ground electronic state, covering the wavenumber…

Earth and Planetary Astrophysics · Physics 2020-07-10 S. N. Yurchenko , Thomas M. Mellor , Richard S. Freedman , J. Tennyson

We present high resolution (R = 90,000) mid-infrared spectra of M dwarfs. The mid infrared region of the spectra of cool low mass stars contain pure rotational water vapour transitions that may provide us with a new methodology in the…

Astrophysics · Physics 2009-11-13 S. Viti , H. R. A. Jones , M. J. Richter , R. J. Barber , J. Tennyson , J. H. Lacy

Remote sensing experiments require high-accuracy, preferably sub-percent, line intensities and in response to this need we present computed room temperature line lists for six symmetric isotopologues of carbon dioxide: $^{13}$C$^{16}$O$_2$,…

Earth and Planetary Astrophysics · Physics 2017-11-01 Emil J. Zak , Jonathan Tennyson , Oleg L. Polyansky , Lorenzo Lodi , Nikolay F. Zobov , Sergei A. Tashkun , Valery I. Perevalov

A computed line list for hydrogen peroxide, H$_2{}^{16}$O$_2$, applicable to temperatures up to $T=1250$~K is presented. A semi-empirical high accuracy potential energy surface is constructed and used with an {\it ab initio} dipole moment…

Earth and Planetary Astrophysics · Physics 2016-07-05 Ahmed F. Al-Refaie , Oleg L. Polyansky , Roman I. Ovsyannikov , Jonathan Tennyson , Sergei N. Yurchenko

An accurate and comprehensive room temperature rotation-vibration transition line list for phosphine (31PH3) is computed using a newly refined potential energy surface and a previously constructed ab initio electric dipole moment surface.…

Earth and Planetary Astrophysics · Physics 2013-05-17 Clara Sousa-Silva , Sergei N. Yurchenko , Jonathan Tennyson

In the framework of the Herschel-WISH key program, several ortho-H2O and para-H2O emission lines, in the frequency range from 500 to 1700 GHz, were observed with the HIFI instrument in two bow-shock regions (B2 and R) of the L1157 cloud.…

Astrophysics of Galaxies · Physics 2015-06-03 M. Vasta , C. Codella , A. Lorenzani , G. Santangelo , B. Nisini , T. Giannini , M. Tafalla , R. Liseau , E. F. van Dishoeck , L. Kristensen

First detections of thermal water vapor absorption lines have been made toward Orion IRc2 using the Short Wavelength Spectrometer (SWS) on board the Infrared Space Observatory (ISO). Grating spectra covering wavelengths 25-45 micron yield…

Hot line lists for two isotopologues of water, \octo\ and \heto, are presented. The calculations employ newly constructed potential energy surfaces (PES) which take advantage of a novel method for using the large set of experimental energy…

A new hot line list is calculated for $^{12}$CH$_4$ in its ground electronic state. This line list, called 10to10, contains 9.8 billion transitions and should be complete for temperatures up to 1500 K. It covers the wavelengths longer than…

Earth and Planetary Astrophysics · Physics 2014-06-27 Sergei N. Yurchenko , Jonathan Tennyson

A new line list for H$_2$$^{16}$O is presented. This line list, which is called POKAZATEL, includes transitions between rotation-vibrational energy levels up to 41000 cm$^{-1}$ in energy and is the most complete to date. The potential…

Earth and Planetary Astrophysics · Physics 2018-08-21 Oleg L. Polyansky , Aleksandra A. Kyuberis , Nikolai F. Zobov , Jonathan Tennyson , Sergei N. Yurchenko , Lorenzo Lodi

The infrared absorption spectrum of the protonated water dimer (H5O2+) is simulated in full dimensionality (15D) in the spectral range 0-4000 cm-1. The calculations are performed using the Multiconfiguration Time-Dependent Hartree (MCTDH)…

Chemical Physics · Physics 2007-11-12 Oriol Vendrell , Fabien Gatti , Hans-Dieter Meyer

This work presents the AYT2 line list: a comprehensive list of 114 million $^{1}$H$_2$$^{32}$S vibration-rotation transitions computed using an empirically-adjusted potential energy surface and an {\it ab initio} dipole moment surface. The…

Earth and Planetary Astrophysics · Physics 2016-07-05 Ala'a A. A. Azzam , Jonathan Tennyson , Sergei N. Yurchenko , Olga V. Naumenko
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