Reference : The Spectrum of Comet 1947n.
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
The Spectrum of Comet 1947n.
Swings, Polydore [McDonald Observatory > > > > >]
Page, Thornton [McDonald Observatory > > > > >]
Astrophysical Journal
University of Chicago Press
[en] The spectrum of Comet 1947n has been observed from heliocentric distance r = 0.504 to r = 1.135 between λ 3000 and λ 8900. The OH band is unusually weak relative to NH. The (0, 0) band of CN reveals a complex rotational structure due to fluorescence, similar to that observed in previous comets. Features appearing within the Swan bands are described and discussed. The red region is mainly due to NH2. Two intense infrared emissions have been found for the first time at λ 7906 and λ 8106. A detailed discussion seems to indicate that they may be attributed to the red system of CN. This CN emission in the infrared does not result from fluorescence but probably from the photodissociation of a parent-molecule. No atomic lines have been found other than the D lines of Na. The two components of the nucleus reveal exactly the same spectrum.
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