Rotational Analysis of the A-X and B-X Band Systems of CaH

Abstract

The absorption spectrum of CaH in the region 6 130-7 125 Å has been generated using a King furnace. The spectrum was recorded photographically in a 10.685 m concave grating spectrograph. Ten bands belonging to the A 2 Π- X 2 Σ and B 2 Σ- X 2 Σ systems have been rotationally analyzed. Perturbations between the two excited states have been observed. Computer methods have been used to calculate term values and to evaluate molecular constants.