Computer Science
Scientific paper
Apr 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989em%26p...45...17g&link_type=abstract
Earth, Moon, and Planets (ISSN 0167-9295), vol. 45, April 1989, p. 17-27.
Computer Science
1
Chemical Composition, Emission Spectra, Halley'S Comet, Spectrophotometry, Visible Spectrum, Carbon Compounds, Cyanogen, Methyl Compounds, Nitrogen Hydrides
Scientific paper
Spectral scans of the head of periodic Comet Halley (1982i) have been presented and analyzed in detail in the optical region 3200-7000 A for ten nights during the preperihelion period. Emission features due to NH, CN, CH, C3, and C2 molecules have been identified. The behavior of the variation of different emission lines strength as a function of heliocentric distance has been investigated. It is found that the comet exhibits night-to-night variation of brightness. The abundances and production rates of CN and C2 species have also been derived.
Duggal H. K.
Goraya P. S.
Gupta Kumar S.
Malhi J. S.
Rautela B. S.
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