Physical Properties of Active Comets

Details Physical Properties of Active Comets Physical Properties of Active Comets

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996hawi.reptr....j&link_type=abstract

Technical Report, Hawaii Univ. Honolulu, HI United States Institute for Astronomy.

Astronomy and Astrophysics

Astronomy

Comets, Infrared Spectra, Near Infrared Radiation, Cometary Atmospheres, Comet Nuclei, Astronomical Spectroscopy, Charge Coupled Devices, Infrared Detectors, Outgassing, Asteroids, Chiron, Spectrum Analysis, Carbon Monoxide, Astronomical Photometry, Ice Environments

Scientific paper

The research consisted of an intensive observational study of the morphology and photometry of selected active comets. The study was intended to clarify the variation of the morphology and photometry with respect to time, and to produce robust quantitative information on the temporal and morphological properties of the inner coma. The strongest constraints on the nature of comets are those obtained from incisive observations of end-member examples. Hence, we have concentrated on comets active at large distances from the sun (to learn about outgassing and coma formation by super-volatiles), on split comets (to learn about the structural properties of the nucleus and the splitting mechanism) and on transition objects including the ice-rich centaurs and Jovian Trojans. While not classically regarded as comets, it is now widely recognized that the latter objects are probably precursors and cousins, respectively, of the active observed nearer the sun. This research exploited new large-format optical charge-coupled device (CCD) and infrared detectors and the high-quality seeing at the Mauna Kea Observatories.

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