Accession Number : AD0259912

Title :   APPROXIMATE CALCULATIONS OF SPECTRAL EMMISSIVITIES IN THE INFRARED FOR HC1 IN THE STRONG-LINE APPROXIMATION

Corporate Author : CALIFORNIA INST OF TECH PASADENA GUGGENHEIM JET PROPULSION CENTER

Personal Author(s) : GRAY,L.D.

Report Date : 31 MAY 1961

Pagination or Media Count : 1

Abstract : Spectral emissivities are computed and compared with previous data. At 600 K, the agreement is satisfactory, but there is quite a large discrepancy, particularly in the P branch, at 2400 K. For the strong-line approximation, it appears that vibration-rotation interaction and anharmonicity terms should be included in the calculation of spectral absorption coefficientsAT ELEVATED TEMPERATURES. However, for the weakline approximation, the harmonic-oscillator rigid-rotator model give ea ab e ag eement wit more elaborate numerical calculations. (Author

Descriptors :   *INFRARED SPECTROSCOPY, CHLORIDES, EXCITATION, HIGH TEMPERATURE, HYDROGEN COMPOUNDS, NUMERICAL ANALYSIS, OPTICAL SIGHTS, QUANTUM THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE