Line lists for TiO minor isotopologues for the A3F-X3? electronic transition

The TiO A3 & phi;-X3 & UDelta; electronic transition (& gamma; system) is a significant opacity source in M dwarf stars as well as in the atmospheres of hot Jupiter exoplanets. The minor isotopologues, 46TiO, 47TiO, 49TiO and 50TiO, specifically the 0-0 and 0-1 bands, have been analyzed, producing spectroscopic constants for the A3 & phi; (v = 0) state and line lists with line positions based on experiment. In total 8248 lines in the A3 & phi;-X3 & UDelta; transition were fitted, with wavenumbers ranging from 12,827 cm-1 to 14,172 cm-1 (780-706 nm) with J values from 1 to 70. The TiO emission spectrum used for the analysis was recorded at the McMath-Pierce Solar Telescope, operated by the National Solar Observatory at Kitt Peak, Arizona.

Automated summary

The TiO A3 & phi;-X3 & UDelta; electronic transition (& gamma; system) plays an important role in the opacity of M dwarf stars and hot Jupiter exoplanet atmospheres. The spectroscopic constants and line positions for the minor isotopologues 46TiO, 47TiO, 49TiO, and 50TiO in the 0-0 and 0-1 bands have been analyzed based on experimental data. A total of 8248 lines in the A3 & phi;-X3 & UDelta; transition, covering wavenumbers from 12,827 cm-1 to 14,172 cm-1 (780-706 nm) with J values from 1 to 70, have been fitted. The TiO emission spectrum used for analysis was recorded at the McMath-Pierce Solar Telescope in Kitt Peak, Arizona.