The first identification of C2 emission bands in comet Scorichenko-George (1989e1) spectrum

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Amino Radical, Carbon, Comets, Emission Spectra, Molecular Ions, Molecular Spectra, Spectrum Analysis, Carbon Dioxide, Carbon Monoxide, Nitrogen, Reflectors, Sodium, Television Systems, Water

Scientific paper

Wave lengths from 360 emissions within the spectral range lambda lambda 3380-6290 A in the spectrum of the comet Scorichenko-George, obtained with the help of the TV spectral scanner of a 6-meter reflector BTA (in Special AO) have been determined. The CN, C2, C3, NH, CH, CO, Na, NH2, N2(+), CO(+), CO2(+), H2O(+), and C2(-) emissions have been identified. For the first time, it has been shown that emissions of C2(-) (the transitions 0-0, 0-1, et al.) in the cometary spectrum possibly exist. Molecular ions C2(-) column density with cross-section 1 sq cm is N = 1.44 10-12 cm-2 and their upper limits of gas C2(-) productivity is Q(C2(-)) = 2 1028 c-1.

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