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Thermal emission spectra; spectra of YbI molecule; vibrational analysis

Thermal emission spectrum of YbI molecule has been photographed for the first time in the spectral regionλλ 6100–6400 Å using Saha’s high temperature furnace at a reciprocal linear dispersion of 7.3 Å/mm. A total of 52 single-headed and violet degraded bands have been recorded and are classified into a single system. Vibrational analysis has been carried out and it has been suggested that system arises from the ground state with the vibrational constantω″_e=153.0 cm⁻¹.

K N Uttam¹ M M Joshi¹

1. Saha’s Spectroscopy Laboratory, Physics Department, University of Allahabad, Allahabad - 211 002, India

Published

March 1994

Manuscript received

19 October 1993

Manuscript revised

5 February 1994