Abstract
Results are presented of experimental oscillator-strength measurements for four Lyman, one Werner, two B′-X and two D-X bands of molecular hydrogen in the wavelength region between 850 and 900 Å. A photoabsorption technique and equivalent-width analysis similar to that described in the first paper of this series was employed but, in this case, all measurements were taken with the absorbing gas at liquid-air temperature. This procedure resulted in a simplification of the absorption spectrum, making it possible to study lines which were unresolved at room temperature. Excellent agreement with the most recent theory is observed for the Lyman bands, but the experimental Werner band oscillator strength is slightly low, consistent with the trend observed above 900 Å in the previous work. No other experimental results exist for the bands studied, and no theoretical oscillator strengths are available for the B′-X and D-X bands.
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