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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 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

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

{\it Ab initio} potential energy and dipole moment surfaces are computed for sulfur trioxide (SO$_3$) at the CCSD(T)-F12b level of theory and appropriate triple-zeta basis sets. These surfaces are fitted and used, with a slight correction…

Earth and Planetary Astrophysics · Physics 2017-09-13 Daniel S. Underwood , Jonathan Tennyson , Sergei N. Yurchenko

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

A rotation-vibration line list for the electronic ground state ($\tilde{X}^{1}A_{1}$) of SiH$_2$ is presented. The line list, named CATS, is suitable for temperatures up to 2000 K and covers the wavenumber range 0 - 10,000…

Chemical Physics · Physics 2020-04-03 Victoria H. J. Clark , Alec Owens , Jonathan Tennyson , Sergei N. Yurchenko

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

A computed line list for formaldehyde, H$_2{}^{12}$C$^{16}$O, applicable to temperatures up to $T=1500$~K is presented. An empirical potential energy and {\it ab initio} dipole moment surfaces are used as the input to nuclear motion program…

Astrophysics of Galaxies · Physics 2015-06-02 Ahmed F. Al-Refaie , Andrey Yachmenev , Jonathan Tennyson , Sergei N. Yurchenko

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 present comprehensive experimental line lists of methane (CH4) at high temperatures obtained by recording Fourier transform infrared emission spectra. Calibrated line lists are presented for the temperatures 300 - 1400 degC at twelve 100…

Instrumentation and Methods for Astrophysics · Physics 2013-08-23 R. J. Hargreaves , C. A. Beale , L. Michaux , M. Irfan , P. F. Bernath

Calculations are reported on the rotation-vibration energy levels of the arsine molecule with associated transition intensities. A potential energy surface (PES) obtained from \textit{ab initio} electronic structure calculations is refined…

Earth and Planetary Astrophysics · Physics 2019-02-07 Phillip A. Coles , Sergei N. Yurchenko , Richard P. Kovacich , James Hobby , Jonathan Tennyson

Spectroscopic and structural properties of methoxymethyl radical (CH$_3$OCH$_2$, RDME) are determined using explicitly correlated ab initio methods. This radical of astrophysical and atmospheric relevance has not been fully characterized at…

Chemical Physics · Physics 2019-05-24 O. Yazidi , M. L. Senent , V. Gámez , M. Carvajal , M. Mogren Al-Mogren

A new line list for ethylene, $^{12}$C$_2$$^1$H$_4$ is presented. The line list is based on high level ab initio potential energy and dipole moment surfaces. The potential energy surface is refined by fitting to experimental energies. The…

Earth and Planetary Astrophysics · Physics 2018-08-21 Barry P. Mant , Andrey Yachmenev , Jonathan Tennyson , Sergei N. Yurchenko

Comprehensive and accurate rovibronic line lists for the X $^{1}\Sigma^{+}$ and A $^{1}\Pi$ states of $^{12}$C$^{1}$H$^{+}$ and $^{13}$C$^{1}$H$^{+}$ which should be applicable up to temperatures of 5000 K are presented. Available empirical…

Solar and Stellar Astrophysics · Physics 2023-08-09 Oliver Pearce , Sergei N. Yurchenko , Jonathan Tennyson

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

Comprehensive rotation-vibration line lists are presented for the two main isotopologues of methyl chloride, $^{12}$CH$_3{}^{35}$Cl and $^{12}$CH$_3{}^{37}$Cl. The line lists, OYT-35 and OYT-37, are suitable for temperatures up to…

Earth and Planetary Astrophysics · Physics 2018-08-21 A. Owens , A. Yachmenev , W. Thiel , A. Fateev , J. Tennyson , S. N. Yurchenko

Accurate line lists for three molecules, BeH, MgH and CaH, in their ground electronic states are presented. These line lists are suitable for temperatures relevant to exoplanetary atmospheres and cool stars (up to 2000K). A combination of…

Solar and Stellar Astrophysics · Physics 2012-08-22 Benjamin Yadin , Thomas Veness , Pierandrea Conti , Christian Hill , Sergei N. Yurchenko , Jonathan Tennyson

A new room temperature line list for $^{15}$NH$_3$ is presented. This line list comprised of transition frequencies and Einstein coefficients has been generated using the `spectroscopic' potential energy surface NH3-Y2010 and an ab initio…

Earth and Planetary Astrophysics · Physics 2015-03-02 Sergei N. Yurchenko

A rovibronic line list for the ground ($X$ $^3\Sigma^-$) and first excited ($a$ $^1\Delta$) states of phosphinidene, $^{31}$PH, is computed. The line list is designed for studies of exoplanetary and cool stellar atmospheres with…

Earth and Planetary Astrophysics · Physics 2019-07-17 Jonathan Langleben , Jonathan Tennyson , Sergei N. Yurchenko , Peter Bernath

A variationally computed $^{28}$SiH$_4$ rotation-vibration line list applicable for temperatures up to $T=1200\,$K is presented. The line list, called OY2T, considers transitions with rotational excitation up to $J=42$ in the wavenumber…

Chemical Physics · Physics 2017-12-29 A. Owens , A. Yachmenev , W. Thiel , J. Tennyson , S. N. Yurchenko
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