Infrared cometary spectroscopy

Details Infrared cometary spectroscopy Infrared cometary spectroscopy

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989esasp.290...15c&link_type=abstract

In ESA, Infrared Spectroscopy in Astronomy p 15-36(SEE N90-19084 11-89)

Astronomy and Astrophysics

Astronomy

3

Comets, Infrared Spectroscopy, Molecular Structure, Solar System, Astronomical Spectroscopy, Infrared Spectra, Microwave Spectra, Molecular Spectroscopy, Molecules

Scientific paper

The recent observations and theoretical works concerning cometary molecules, relevant to infrared spectroscopy, are reviewed. Infrared spectroscopy, with microwave and submillimeter spectroscopy, is practically the only remote sensing technique able to study stable molecules sublimed from the nucleus or formed by gas phase chemistry in the inner comets. The recent observations of Comet Halley are considered. The observation of a strong and broad emission of CH-bearing molecules around 3.3 microns are discussed. The analysis shows that detailed models must include collisional excitation radiative transfer and chemical pumping. Considerations for the further evolution of infrared spectroscopy are given.

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