ExoMol line lists – L: high-resolution line lists of H3+, H2D+, D2H+, and D3+. Issue 4 (9th January 2023)

• Record Type: Journal Article
• Authors: Bowesman, Charles A; Mizus, Irina I; Zobov, Nikolay F; Polyansky, Oleg L; Sarka, János; Poirier, Bill; Pezzella, Marco; Yurchenko, Sergei N; Tennyson, Jonathan
• Is Part Of: Monthly notices of the Royal Astronomical Society. Volume 519:Issue 4(2023)
• Page Start: 6333
• Page End: 6348
• Publication Date: 2023-01-09
• Subjects: molecular data -- opacity -- planets and satellites: atmospheres -- stars: atmospheres -- ISM: molecules; Astronomy -- Periodicals; Periodicals; 520.5
• DOI: 10.1093/mnras/stad050
• Languages: English
• ISSNs: 0035-8711

Abstract

ABSTRACT: New MiZo line lists are presented for the D2 H + and D$_3^+$ isotopologues of H$_3^+$ . These line lists plus the existing H$_3^+$ MiZATeP and the ST H2 D + line lists are updated using empirical energy levels generated using the marvel procedure for H$_3^+$, H2 D +, and D2 H +, and effective Hamiltonian energies for D$_3^+$ for which there is significantly less laboratory data available. These updates allow accurate frequencies for far infrared lines for these species to be predicted. Assignments of the energy levels of H$_3^+$ and D$_3^+$ are extended using a combination of high accuracy variational calculations and analysis of transition intensities. All line lists are made av ailable via www.exomol.com .