Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981motc.conf..129w&link_type=abstract
In JPL Mod. Observational Tech. for Comets p 129-137 (SEE N82-13989 04-89)
Astronomy and Astrophysics
Astronomy
1
Astronomical Spectroscopy, Comets, Continuous Spectra, Gas Composition, Molecular Spectra, Ground Stations, Space Observations (From Earth), Spectral Resolution, Spectrum Analysis, Surface Properties
Scientific paper
The observational problems presented by bright comets near perihelion are discussed. High and low resolution spectra (3100-800A) of the bright comets Kohoutek, Kobayashi-Berger-Milon, West and d'Arrest are presented. Digital reduction of calibrated photographic spectra to relative intensity versus wavelength, can provide useful information. The reduction of comet spectra to absolute intensities involves, however, large uncertainties and should be interpreted cautiously. Data on recent comets lead to the following results: tentative identification of a new ion in the tail of comets, namely, NH(+); spectroscopic resolution of the fragmented nucleus of comet West; and an accurate monochromatic intensity profile of the Co+ emission (4020A) in comet West.
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