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band oscillator strengths at near-threshold energies
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10.1063/1.3211309
/content/aip/journal/jcp/131/8/10.1063/1.3211309
http://aip.metastore.ingenta.com/content/aip/journal/jcp/131/8/10.1063/1.3211309

Figures

Image of FIG. 1.
FIG. 1.

Preliminary column densities plotted as a function of jet reservoir pressure . The densities have been derived from band-integrated optical depths of the jet cooled calibration bands using experimental room temperature values [graphs (a), (c), and (e)] or ab initio calculated values [graphs (b), (d), and (f)]; for details see Sec. III. The true columns are obtained from least-squares fits, forced through 0, of the preliminary column densities .

Image of FIG. 2.
FIG. 2.

Two photoelectric jet absorption spectra of near 81.3748 nm . The dotted line at marks the head of the band hiding underneath .

Image of FIG. 3.
FIG. 3.

Photometer traces of absorption spectra recorded in the region of the and complexes of and . Except for small changes discussed in Sec. IV, the spectrum of is taken from Ref. 16. The spectrum of was recorded by Yoshino (see Ref. 32).

Image of FIG. 4.
FIG. 4.

Energy level diagram of the and vibronic states in regions where the latter interact with and . Full and dotted lines refer to observed (perturbed) and hypothetical (deperturbed) levels, respectively.

Image of FIG. 5.
FIG. 5.

Log-log plot of values vs effective principal quantum number for levels from to 10, A least-squares fit to the measured values allows first estimates to be made for the oscillator strengths of the strongly overlapped and bands.

Tables

Generic image for table
Table I.

band oscillator strengths in the region. Transitions from are identified by their upper states and the corresponding lines. Room temperature oscillator strengths were measured under equilibrium conditions. Where printed in bold face, they, together with the similarly emphasized ab initio calculated values, served for the calibration of the jet column densities. All jet absorption results, except , are averages of multiple measurements; uncertainties (in parentheses) are given in units of the last quoted decimal place.

Generic image for table
Table II.

band oscillator strengths in the near-threshold region of the jet absorption spectrum from ; continuation of Table I to higher energies. See caption and footnote (a) of Table I. Bands contributing to one and the same value are presented in the form of a sum.

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/content/aip/journal/jcp/131/8/10.1063/1.3211309
2009-08-26
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: N2 band oscillator strengths at near-threshold energies
http://aip.metastore.ingenta.com/content/aip/journal/jcp/131/8/10.1063/1.3211309
10.1063/1.3211309
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