Observational data needs useful for modeling the coma

Details Observational data needs useful for modeling the coma Observational data needs useful for modeling the coma

Oct 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981motc.conf...14h&link_type=abstract

In JPL Mod. Observational Tech. for Comets p 14-18 (SEE N82-13989 04-89)

Mathematics

Chemical Composition, Comets, Computerized Simulation, Gas Composition, Solidified Gases, Data Acquisition, Irradiation, Mathematical Models, Surface Properties

Scientific paper

A computer model of comet comae is described; results from assumed composition of frozen gases are summarized and compared to coma observations. Restrictions on relative abundance of some frozen constituents are illustrated. Modeling, when tightly coupled to observational data, can be important for comprehensive analysis of observations, for predicting undetected molecular species and for improved understanding of coma and nucleus. To accomplish this, total gas production rates and relative elemental abundances of H:C:N:O:S are needed as a function of heliocentric distance of the comet. Also needed are relative column densitites and column density profiles with well defined diaphragm range and pointing position on the coma. Production rates are less desirable since they are model dependent. Total number (or upper limits) of molecules in the coma and analysis of unidentified spectral lines are needed also.

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