MARVEL Analysis of the Measured High-resolution Rovibronic Spectra of 48Ti16O

Laura K. McKemmish, Thomas Masseron, Samuel Sheppard, Elizabeth Sandeman, Zak Schofield, T. Furtenbacher, A. Császár, Jonathan Tennyson, Clara Sousa-Silva

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Accurate, experimental rovibronic energy levels, with associated labels and uncertainties, are reported for 11 lowlying electronic states of the diatomic 48Ti16O 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 48Ti16O, 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 48Ti16O rovibrational energy levels is 8682 and 1882, respectively. The lists of validated lines and levels for 48Ti16O are deposited in the supporting information to this paper.

Original languageEnglish
Article number15
JournalAstrophysical Journal, Supplement Series
Volume228
Issue number2
DOIs
Publication statusPublished - Feb 1 2017

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energy levels
high resolution
energy
diatomic molecules
lists
angular momentum
analysis
electronics
experiment

Keywords

  • astronomical databases: miscellaneous
  • brown dwarfs
  • molecular data
  • opacity
  • planets and satellites: atmospheres
  • stars: low-mass

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

McKemmish, L. K., Masseron, T., Sheppard, S., Sandeman, E., Schofield, Z., Furtenbacher, T., ... Sousa-Silva, C. (2017). MARVEL Analysis of the Measured High-resolution Rovibronic Spectra of 48Ti16O. Astrophysical Journal, Supplement Series, 228(2), [15]. https://doi.org/10.3847/1538-4365/228/2/15

MARVEL Analysis of the Measured High-resolution Rovibronic Spectra of 48Ti16O. / McKemmish, Laura K.; Masseron, Thomas; Sheppard, Samuel; Sandeman, Elizabeth; Schofield, Zak; Furtenbacher, T.; Császár, A.; Tennyson, Jonathan; Sousa-Silva, Clara.

In: Astrophysical Journal, Supplement Series, Vol. 228, No. 2, 15, 01.02.2017.

Research output: Contribution to journalArticle

McKemmish, LK, Masseron, T, Sheppard, S, Sandeman, E, Schofield, Z, Furtenbacher, T, Császár, A, Tennyson, J & Sousa-Silva, C 2017, 'MARVEL Analysis of the Measured High-resolution Rovibronic Spectra of 48Ti16O', Astrophysical Journal, Supplement Series, vol. 228, no. 2, 15. https://doi.org/10.3847/1538-4365/228/2/15
McKemmish, Laura K. ; Masseron, Thomas ; Sheppard, Samuel ; Sandeman, Elizabeth ; Schofield, Zak ; Furtenbacher, T. ; Császár, A. ; Tennyson, Jonathan ; Sousa-Silva, Clara. / MARVEL Analysis of the Measured High-resolution Rovibronic Spectra of 48Ti16O. In: Astrophysical Journal, Supplement Series. 2017 ; Vol. 228, No. 2.
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