Other
Scientific paper
Dec 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...347l..51m&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 347, Dec. 1, 1989, p. L51-L54. Research supported by SERC.
Other
36
Hydrogen Ions, Jupiter (Planet), Line Spectra, Molecular Ions, Vibrational Spectra, Angular Momentum, Emission Spectra, Exothermic Reactions, Laboratories, Molecular Excitation, Molecular Rotation
Scientific paper
Wavenumbers and assignments are reported for lines of the 2nu2 vibrational band of the H3(+) molecular ion, observed in the range 4500-5100/cm as pressure-enhanced emission lines from a hollow-cathode electrical discharge through molecular hydrogen. The assignments are based on ab initio calculations, previously tested for the nu2 fundamental and for difference bands, and here extended up to angular momentum states with J = 12. Calculated Einstein A(if) coefficients of the lines are presented and imply a rotational temperature of about 1800 + or - 200 K in the laboratory spectrum, which is probably due to emission by excited H3(+) formed in the exothermic reaction H2(+) + H2-H3(+) + H. The H3(+) 2nu2 band has recently been identified in emission from the auroral 'hot spots' of Jupiter, and the present more extensive data will assist in further astronomical searches for this ion.
Feldman Paul A.
Majewski Władysław A.
Miller Samantha
Tennyson Jonathan
Watson James K. G.
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