Direct imaging and spectrophotometry of Comet P/Tempel 2

Details Direct imaging and spectrophotometry of Comet P/Tempel 2 Direct imaging and spectrophotometry of Comet P/Tempel 2

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990icar...86...58b&link_type=abstract

Icarus (ISSN 0019-1035), vol. 86, July 1990, p. 58-68.

Physics

8

Comet Nuclei, Image Processing, Spectrophotometry, Tempel 2 Comet, Cometary Atmospheres, Electron States, Perihelions, Comets, Tempel 2, Photometry, Comet Nuclei, Diameter, Size, Lightcurve, Comae, Spin, Gases, Production Rate, Spectroscopy, Optical Properties, Earth-Based Observations, Ccd Methods, Photographs, Imagery, Morphology, Brightness

Scientific paper

Both direct imaging and spectrophotometry of Comet P/Tempel 2 during May-November 1988 have led to a nuclear diameter determination of the order of about 10 km. Sekanina's (1987) spin-vector model for this comet is judged capable of qualitatively accounting for both the visual lightcurve of the comet during this period, which exhibited a steep increase perihelion despite the normal, moderate-decrease perihelion, and an asymmetric extension of the fanlike coma in the solar direction. The late activity onset, the possible constant visual brightness immediately afterward, and the deviation of the fan axis orientation from the predicted value in May 1988, may all furnish additional constraints for P/Tempel 2 nucleus modeling.

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