Rotational Analysis of the 9877 and 8960 Å Bands of FeD

Abstract

The many-line infrared system of iron deuteride has been studied in absorption and thermal emission. Approximately 1000 lines in the (1, 0) and (0, 0) bands of a 4Δ - 4Δ transition have been assigned. All four subbands show Λ-doubling. The larger Λ-splitting occurs in the lower electronic state. Rotational analyses have been performed yielding the following rotational constants (in cm-1):