Infrared Spectra of Hot HF and DF

Improved Parameterization for Combined Isotopomer Analysis of Diatomic Spectra and Its Application to HF and DF

“…While electronic spectra provide lower resolution data for the higher vibrational levels of this system (24,25), the present analysis was restricted to the data set of Ref. (23) in order to facilitate comparisons with conventional methods of analysis. Table 1 presents results obtained on fitting the HF and DF data of Ref.…”

Uncertainty, Sensitivity, Convergence, and Rounding in Performing and Reporting Least-Squares Fits

“…Moreover, calculation of S( p j ) only involves quantities already required for the least-squares procedure, so it can readily be incorporated into any standard least-squares fitting routine. 5,6 A residual shortcoming of this sensitivity-based parameter 3 The ratio Femenias (18) as a measure of the overall lack of dependence of a given parameter on all the other free parameters of the fit. This F parameter is in turn simply the inverse square root of a measure of the degree of interparameter correlation introduced earlier by Watson et al (19).…”

“…In the case of the present Dunham expansion fits to Eq. [3], this means rounding the parameters as ordered in Table 1 from bottom to top. For models that involve (sets of) power series, such as the Dunham-type expansion considered here, this might seem the most natural order in which to perform such rounding.…”

The Lamb-dip spectrum of the J=1←0 transition of DF: Crossing resonances and hyperfine components

“…The main investigation has been carried out by Ram et al [2] who published in 1990, Fourier transform emission measurements for HF and DF at a temperature of 2300°C. They reported pure rotation and vibration-rotation lines measured with a precision of about 0.0005 cm À1 for the vibrational levels v = 0-5.…”