Physics
Scientific paper
Sep 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ioch.rept...91r&link_type=abstract
In NASA, Washington, Infrared Observations of Comets Halley and Wilson and Properties of the Grains p 91-104 (SEE N89-13330 04-8
Physics
Atmospheric Chemistry, Chemical Analysis, Comet Nuclei, Cometary Atmospheres, Cosmic Dust, Emission Spectra, Infrared Spectra, Interstellar Matter, Spectral Reflectance, Transmittance
Scientific paper
Laboratory studies related to cometary grains and the nuclei of comets can be broken down into three areas which relate to understanding the spectral properties, the formation mechanisms, and the evolution of grains and nuclei: (1) Spectral studies to be used in the interpretation of cometary spectra; (2) Sample preparation experiments which may shed light on the physical nature and history of cometary grains and nuclei by exploring the effects on grain emissivities resulting from the ways in which the samples are created; and (3) Grain processing experiments which should provide insight on the interaction of cometary grains with the environment in the immediate vicinity of the cometary nucleus as the comet travels from the Oort cloud through perihelion, and perhaps even suggestions regarding the relationship between interstellar grains and cometary matter. A summary is presented with a different view of lab experiments than is found in the literature, concentrating on measurement techniques and sample preparations especially relevant to cometary dust.
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