Langleben, J;
Tennyson, J;
Yurchenko, SN;
Bernath, P;
(2019)
ExoMol line list – XXXIV. A rovibrational line list for phosphinidene (PH) in its X3Σ− and a1Δ electronic states.
Monthly Notices of the Royal Astronomical Society
, 488
(2)
pp. 2332-2342.
10.1093/mnras/stz1856.
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Abstract
A rovibronic line list for the ground (X 3Σ−) and first excited (a 1Δ) states of phosphinidene, 31PH, is computed. The line list is designed for studies of exoplanetary and cool stellar atmospheres with temperatures up to 4000 K. A combination of empirical and ab initio data is used to produce the line list: potential energy curves (PECs) are fitted using experimental transition frequencies; these transitions are reproduced with a root mean square error of 0.01 cm−1. The nuclear Schrödinger equation is solved using these PECs plus Born–Oppenheimer and spin splitting correction terms. Line intensities and Einstein A coefficients are computed using ab initio dipole moment curves for X–X and a–a transitions. The resulting LaTY line list, which contains 65 055 transitions for 2528 rovibronic states up to 24 500 cm −1 and J = 80, is used to simulate spectra in emission and absorption for a range of temperatures. The line list is made available in electronic form at the CDS and ExoMol data bases.
| Type: | Article |
|---|---|
| Title: | ExoMol line list – XXXIV. A rovibrational line list for phosphinidene (PH) in its X3Σ− and a1Δ electronic states |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/mnras/stz1856 |
| Publisher version: | http://doi.org/10.1093/mnras/stz1856 |
| Language: | English |
| Additional information: | Copyright © The Author(s) 2019. Published by Oxford University Press on behalf of The Royal Astronomical Society. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | molecular data, opacity, astronomical data bases: miscellaneous, planets and satellites: atmospheres, stars: low-mass |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10077764 |
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