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Transition moments, radiative transition probabilities, and radiative lifetimes for the band systems A 2 Π–X 2 Σ + , B 2 Σ + –X 2 Σ + , and A 2 Π–A´ 2 Δ of scandium monosulfide, ScS
- Source :
- Journal of Quantitative Spectroscopy and Radiative Transfer. 211:44-49
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- A manifold of electronic states of ScS was investigated with special emphasis on the low-lying states X 2Σ+, A´ 2Δ, A 2Π, and B 2Σ+. For all states, potential energy curves were constructed covering internuclear distances from the equilibrium region through the dissociation limit. For the above states, besides providing the most accurate set of theoretical spectroscopic parameters to date, we have also computed dipole moment functions, transitions dipole moment functions, the associated radiative transition probabilities, and radiative lifetimes. For the states known experimentally, X 2Σ+, A 2Π, and B 2Σ+, our results significantly expand our present knowledge of the energetic profile of these states thus providing a new perspective for understanding the limited spectral data for this species known so far. For the new state, A´ 2Δ, yet unobserved experimentally, our results are sufficiently reliable and accurate to guide spectroscopists on further studies of this species.
- Subjects :
- Physics
Scandium monosulfide
Radiation
010304 chemical physics
01 natural sciences
Potential energy
Atomic and Molecular Physics, and Optics
Dissociation (chemistry)
Electronic states
Dipole
chemistry.chemical_compound
chemistry
0103 physical sciences
Radiative transfer
Radiative transition
Atomic physics
Spectral data
010303 astronomy & astrophysics
Spectroscopy
Subjects
Details
- ISSN :
- 00224073
- Volume :
- 211
- Database :
- OpenAIRE
- Journal :
- Journal of Quantitative Spectroscopy and Radiative Transfer
- Accession number :
- edsair.doi...........6c6424ea8bb37b9702f247d395439915