ExoMol line lists. XXIV. SiH : J/MNRAS/473/5324


Authors : Yurchenko S.N. orcid , Sinden F., Lodi L. (hide) , Sinden F., Lodi L. et..al

Bibcode : 2018MNRAS.473.5324Y (ADS) (Simbad) (Objects) (hide)

CDS Keywords : Atomic physics
UAT : Atomic physics

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Inserted into VizieR : 14-May-2018
Last modification : 18-Aug-2024

ExoMol line lists. XXIV A new hot line list for silicon monohyrdide, SiH. (2018)

Keywords : molecular data - opacity - astronomical data bases miscellaneous - planets and satellites: atmospheres - stars: low-mass

Abstract:SiH has long been observed in the spectrum of our Sun and other cool stars. Computed line lists SiGHTLY for the main isotopologues of silicon monohydride, ^28^SiH, ^29^SiH, ^30^SiH and ^28^SiD are presented. These line lists consider rotation-vibration transitions within the ground X ^2^{Pi} electronic state as well as transitions to the low-lying A ^2^{Delta} and a ^4^{Sigma}^-^ states. Ab initio potential energy (PECs) and dipole moment curves (DMCs) along with spin-orbit and electronic-angular-momentum couplings between them are calculated using the MRCI level of theory with the MOLPRO package. The PEC for the ground X state is refined to available experimental data with a typical accuracy of around 0.01cm^-1^ or better. The ^28^SiH ...(more)
Abstract: (hide)
The data for each isotopologue are in two parts. The first, s_*.dat contain lists of rovibronic states. Each state is labelled with the total angular momentum, state degeneracy, life time, Zeeman Lande-g factor, total (+/-) and e/f parities, vibrational quantum number, projection of the electronic, spin and total angular momenta. Each state has a unique number, which is the number of the row in which it appears in the file. This number is the means by which the state is related to the second part of the data system, the transitions files. The transition files t_*.dat contain four columns: the reference number in the energy file of the upper state; that of the lower state; the Einstein A coefficient of the transition; the transition wavenumber.
S.N. Yurchenko, s.yurchenko@ucl.ac.uk J. Tennyson, j.tennyson@ucl.ac.uk

                
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