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Comet P/Halley’s nucleus and its activity
The Halley Multicolour Camera on board ESA’s Giotto spacecraft observed the nucleus of comet P/Halley and its environment and returned more than 2000 images. The observations are summarized, theirExpand
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Spectra of Comets and Their Interpretation
Important progress has been made in the study of cometary spectra in recent years thanks to the introduction of high resolution. Spectra of comets have been taken with the coude spectrographs ofExpand
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A Halley multicolour camera
TLDR
The Halley multicolour camera is a high-resolution imaging system on board Giotto. Expand
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A study of molecular and physical processes in comets
The rotational structure of the violet CN (0, 0) band in cometary spectra is investigated from a new point of view. The usual assumption of a Boltzmann distribution of populations of the rotationalExpand
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Detailed study of the CN violet (0, 0) band in cometary spectra
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Resolution of the [O i] + NH2 blend in comet P/Halley
Spectra of comet P/Halley have been taken at very high resolution (0.015 nm) with a view to evaluating the contamination of the forbidden oxygen doublet at 630 nm by NH2 features at low resolution.Expand
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THE LAMBDA 4300 BAND OF CH IN THE SPECTRUM OF COMET IKEYA (1963A).
Abstract : The intensities of the individual rotational lines of the A-delta - X-sq pi (0,0) band of CH have been computed by solving the steady-state equations which describes the fluorescence of CHExpand
THEORETICAL CONSIDERATIONS ON THE PREDICTED FAR ULTRAVIOLET SPECTRA OF COMETS AND OF POLAR AURORAE
Abstract : The expected far ultraviolet spectra of comets and of polar aurorae is considered. The far ultraviolet spectrum of comets will be weak compared to the visual region; new molecules may beExpand
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