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Related papers: ExoMol molecular line lists -- XXXVII: spectra of …

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Sulphur dioxide is well-known in the atmospheres of planets and satellites, where its presence is often associated with volcanism, and in circumstellar envelopes of young and evolved stars as well as the interstellar medium. This work…

Using APEX-1 and APEX-2 observations, we have detected and studied the rotational lines of the HC$_3$N molecule (cyanoacetylene) in the powerful outflow/hot molecular core G331.512-0.103. We identified thirty-one rotational lines at $J$…

The ExoMol project is dedicated to providing molecular line lists for exoplanet and other hot atmospheres. The ExoMol procedure uses a mixture of ab initio calculations and available laboratory data. The actual line lists are generated…

Solar and Stellar Astrophysics · Physics 2018-05-14 Jonathan Tennyson , Sergei N. Yurchenko

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…

New line lists for four isotopologues of nickel monohydride, $^{58}$NiH, $^{60}$NiH, $^{62}$NiH, and $^{58}$NiD are presented covering the wavenumber range $<10000$ cm$^{-1}$ ($\lambda > 1$ $\mu$m), $J$ up to 37.5 for transitions within and…

The ExoMol database (www.exomol.com) provides molecular data for spectroscopic studies of hot atmospheres. While the data is intended for studies of exoplanets and other astronomical bodies, the dataset is widely applicable. The basic form…

The discovery of extrasolar planets is one of the major scientific advances of the last two decades. Hundreds of planets have now been detected and astronomers are beginning to characterise their composition and physical characteristics. To…

Earth and Planetary Astrophysics · Physics 2015-03-20 Jonathan Tennyson , Sergei N. Yurchenko

Extensive rovibrational line lists are constructed for 12 isotopologues of carbon dioxide: $^{12}$C$^{16}$O$_2$, $^{13}$C$^{16}$O$_2$, $^{12}$C$^{17}$O$_2$, $^{13}$C$^{17}$O$_2$, $^{12}$C$^{18}$O$_2$, $^{13}$C$^{18}$O$_2$,…

Line lists for the sulphur-containing molecules SH (the mercapto radical) and NS are computed as part of the ExoMol project. These line lists consider transitions within the $X$ ${}^2\Pi$ ground state for $^{32}$SH, $^{33}$SH, $^{34}$SH and…

Solar and Stellar Astrophysics · Physics 2018-05-02 Sergei N. Yurchenko , Wesley Bond , Maire N. Gorman , Lorenzo Lodi , Laura K. McKemmish , William Nunn , Rohan Shah , Jonathan Tennyson

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

Accurate line lists for the carbon dimer, C$_2$, are presented. These line lists cover rovibronic transitions between the eight lowest electronic states: $X\,{}^{1}\Sigma_{g}^{+}$, $a\,{}^{3}\Pi_{u}$, $A\,{}^{1}\Pi_{u}$,…

Solar and Stellar Astrophysics · Physics 2018-12-19 Sergei N. Yurchenko , István Szabó , Elizaveta Pyatenko , Jonathan Tennyson

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

The GYT line list covering rotational, rovibrational and rovibronic transitions of the mercapto radical SH is presented. This work extends and replaces the SNaSH line list [Yurchenko et al., 2018, MNRAS, 478, 270] which covers the ground…

Earth and Planetary Astrophysics · Physics 2019-10-25 Maire N. Gorman , Sergei N. Yurchenko , Jonathan Tennyson

ExoMolHR is an empirical, high-resolution molecular spectrum calculator for the high-temperature molecular line lists available from the ExoMol molecular database. Uncertainties, where available, in recommended ExoMol datasets are used to…

Earth and Planetary Astrophysics · Physics 2025-04-16 Jingxin Zhang , Christian Hill , Jonathan Tennyson , Sergei N. Yurchenko

A new line list for AlH is produced. The WYLLoT line list spans two electronic states $X\,{}^1\Sigma^+$ and $A\,{}^1\Pi$. A diabatic model is used to model the shallow potential energy curve of the $A\,{}^1\Pi$ state, which has a strong…

Solar and Stellar Astrophysics · Physics 2018-08-21 Sergei N. Yurchenko , Henry Williams , Paul C. Leyland , Lorenzo Lodi , Jonathan Tennyson

New molecular line lists for calcium monohydride ($^{40}$Ca$^{1}$H) and magnesium monohydride ($^{24}$Mg$^{1}$H) and its minor isotopologues ($^{25}$Mg$^{1}$H and $^{26}$Mg$^{1}$H) are presented. The rotation-vibration-electronic…

Earth and Planetary Astrophysics · Physics 2022-10-25 Alec Owens , Sophie Dooley , Luke McLaughlin , Brandon Tan , Guanming Zhang , Sergei N. Yurchenko , Jonathan Tennyson

Empirical line lists for the open shell molecule $^{89}$Y$^{16}$O (yttrium oxide) and its isotopologues are presented. The line lists cover the 6 lowest electronic states: $X {}^{2}\Sigma^{+}$, $A {}^{2}\Pi$, $A' {}^{2}\Delta$, $B…

Solar and Stellar Astrophysics · Physics 2023-11-14 Sergei N. Yurchenko , Ryan P. Brady , Jonathan Tennyson , Alexander N. Smirnov , Oleg A. Vasilyev , Victor G. Solomonik

Sulphur trioxide (SO$_3$) is a trace species in the atmospheres of the Earth and Venus, as well as well as being an industrial product and an environmental pollutant. A variational line list for $^{32}$S$^{16}$O$_{3}$, named UYT2, is…

Earth and Planetary Astrophysics · Physics 2016-09-21 Daniel S. Underwood , Sergei N. Yurchenko , Jonathan Tennyson , Ahmed F. Al-Refaie , Sønnik Clausen , Alexander Fateev

We present the first variational calculation of a hot temperature ab initio line list for the CH$_3$ radical. It is based on a high level ab initio potential energy surface and dipole moment surface of CH$_3$ in the ground electronic state.…

Chemical Physics · Physics 2019-05-15 Ahmad Y. Adam , Andrey Yachmenev , Sergei N. Yurchenko , Per Jensen

An accurate line list, called XABC, is computed for nitric oxide which covers its pure rotational, vibrational and rovibronic spectra. A mixture of empirical and theoretical electronic transition dipole moments are used for the final…

Earth and Planetary Astrophysics · Physics 2021-08-24 Qianwei Qu , Sergei N. Yurchenko , Jonathan Tennyson