Publication Date:
2019-07-13
Description:
Recent observations and associated theoretical developments bearing on the composition and structure of comets are briefly reviewed. The physical and dynamical processes in cometary atmospheres and ionospheres are discussed, and detailed hydrodynamic models of expanding multiconstituent cometary atmospheres corresponding both to a central nucleus as well as a central nucleus surrounded by a distributed source are presented for comparison with observation. It is argued that observed 'slow' speed for the neutral hydrogen is not incompatible with a purely H2O 'parent' source for that species.
Keywords:
SPACE SCIENCES
Type:
AIAA PAPER 73-549
,
Space Science Conference: Exploration of the Outer Solar System; Jul 10, 1973 - Jul 12, 1973; Denver, CO; US
Format:
text
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