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The Organic Matter of Comet Halley as Inferred by Joint Gas Phase and Solid Phase Analyses

Korth, A.; Kissel, J.; Krueger, F. R.

During encounters with comet Halley, the experiment PICCA onboard GIOTTO measured the gas phase organic ion composition of the coma and the experiment PUMA onboard VEGA-1 measured the dust composition. Joining both results, we obtain a consistent picture of the parent organic matter from which dust and gas is produced. One recognizes a complex uns…

A Note on the Statistical Evaluation of Compressed Mass Spectra Obtained from Dust Particles in the Coma of Comet Halley

Jessberger, E. K.; Fomenkova, M.; Mukhin, L. +4 more

A weighing factor for individual dust grains based on an independent determination of the particle mass (rather than summing up the total number of ions of an element measured in all spectra) is established for the calculation of the average dust composition. The ion ratio distribution obtained from particles with different masses independent of c…