The d3Φ → a3Δ and b3Π → a3Δ (0-0) Transitions of ScF

✍ Scribed by E.A. Shenyavskaya; M.A. Lebeaultdorget; C. Effantin; J. Dincan; A. Bernard; J. Verges

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 746 KB
• Volume: 171
• Category: Article
• ISSN: 0022-2852
• DOI: 10.1006/jmsp.1995.1121

✦ Synopsis

We present a rotational analysis of the ((0-0)) bands of the visible (d^{3} \Phi \rightarrow a^{3} \Delta) and infrared (b^{3} \Pi \rightarrow a^{3} \Delta) systems of scandium monofluoride which appear in the thermal emission. The wavenumbers of 1240 lines observed in the (\Delta \Sigma=0) subbands of the two systems are the subject of a global adjustment in which the electronic states involved are represented by adapted Hamiltonian matrices. Accurate rotational constants and energies at (v=0) are obtained for the three states. Reliable values of the spin-orbit splittings could also be determined from the fits in spite of the nonobservation of satellite subbands with (\Delta \Sigma= \pm 1). The three substates of (b^{3} \Pi) all show significant (\lambda)-type doubling and the (e / f) parity of the components could be determined. @ 1995 Academic Press Ire.