Ground-based thermal IR images of Comet Tempel 2

Details Ground-based thermal IR images of Comet Tempel 2 Ground-based thermal IR images of Comet Tempel 2

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990icar...86..220c&link_type=abstract

Icarus (ISSN 0019-1035), vol. 86, July 1990, p. 220-227. Research supported by NSF.

Physics

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Comet Tails, Ground Truth, Infrared Imagery, Tempel 2 Comet, Cometary Atmospheres, Meteoroid Dust Clouds, Perihelions, Pixels, Comets, Tempel 2, Earth-Based Observations, Infrared, Wavelengths, Dust, Emissions, Structure, Brightness, Condensation, Comae, Diagrams, Maps, Thermal Properties, Comet Nuclei, West, Comet Tails, Dynamics, Ejection, Particles, Size, Grains

Scientific paper

The 10.8-micron images of Comet Tempel 2 obtained on the four days from September 21 to 24, 1988, indicate that the dust coma contributed about half of the nuclear pixel brightness. The nuclear condensation brightness exhibited a temporal variability slightly larger than observational uncertainty. The structure of the observed extended dust emission is interpretable as (1) a large grain tail primarily generated by cm-scaled particles, (2) the result of an outburst near 2.5-3.0 AU perihelion, and (3) a sunward emission of dust in a fanlike pattern.

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