MARVEL Analysis of the Measured High-resolution Rovibronic Spectra of (TiO)-Ti-48-O-16

作者：McKemmish Laura K^*; Masseron Thomas; Sheppard Samuel; Sandeman Elizabeth; Schofield Zak; Furtenbacher Tibor; Csaszar Attila G; Tennyson Jonathan; Sousa Silva Clara

来源：Astrophysical Journal, The - Supplement Series, 2017, 228(2): 15.

DOI：10.3847/1538-4365/228/2/15

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

Accurate, experimental rovibronic energy levels, with associated labels and uncertainties, are reported for 11 lowlying electronic states of the diatomic (TiO)-Ti-48-O-16 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 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 (TiO)-Ti-48-O-16 rovibrational energy levels is 8682 and 1882, respectively. The lists of validated lines and levels for (TiO)-Ti-48-O-16 are deposited in the supporting information to this paper.

• 出版日期2017-2