McKemmish, LK;
Masseron, T;
Sheppard, S;
Sandeman, E;
Schofield, Z;
Furtenbacher, T;
Császár, AG;
... Sousa-Silva, C; + view all
(2017)
MARVEL Analysis of the Measured High-resolution Rovibronic Spectra of 48 Ti 16 O.
The Astrophysical Journal Supplement Series
, 228
(2)
, Article 15. 10.3847/1538-4365/228/2/15.
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Abstract
Accurate, experimental rovibronic energy levels, with associated labels and uncertainties, are reported for 11 low-lying electronic states of the diatomic ${}^{48}{\mathrm{Ti}}^{16}{\rm{O}}$ molecule, determined using the Marvel (Measured Active Rotational-Vibrational Energy Levels) algorithm. All levels are based on lines corresponding to critically reviewed and validated high-resolution experimental spectra taken from 24 literature sources. The transition data are in the 2–22,160 cm−1 region. Out of the 49,679 measured transitions, 43,885 are triplet–triplet, 5710 are singlet–singlet, and 84 are triplet–singlet transitions. A careful analysis of the resulting experimental spectroscopic network (SN) allows 48,590 transitions to be validated. The transitions determine 93 vibrational band origins of ${}^{48}{\mathrm{Ti}}^{16}{\rm{O}}$, including 71 triplet and 22 singlet ones. There are 276 (73) triplet–triplet (singlet–singlet) band-heads derived from Marvel experimental energies, 123(38) of which have never been assigned in low- or high-resolution experiments. The highest J value, where J stands for the total angular momentum, for which an energy level is validated is 163. The number of experimentally derived triplet and singlet ${}^{48}{\mathrm{Ti}}^{16}{\rm{O}}$ rovibrational energy levels is 8682 and 1882, respectively. The lists of validated lines and levels for ${}^{48}{\mathrm{Ti}}^{16}{\rm{O}}$ are deposited in the supporting information to this paper.
| Type: | Article |
|---|---|
| Title: | MARVEL Analysis of the Measured High-resolution Rovibronic Spectra of 48 Ti 16 O |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.3847/1538-4365/228/2/15 |
| Publisher version: | http://doi.org/10.3847/1538-4365/228/2/15 |
| Language: | English |
| Additional information: | © 2017. The American Astronomical Society. All rights reserved. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
| Keywords: | Astronomical databases: miscellaneous; brown dwarfs; molecular data; opacity; 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/1543325 |
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