An albedo map of P/Halley on 13 March 1986

Details An albedo map of P/Halley on 13 March 1986 An albedo map of P/Halley on 13 March 1986

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ioch.rept..151h&link_type=abstract

In NASA, Washington, Infrared Observations of Comets Halley and Wilson and Properties of the Grains p 151-153 (SEE N89-13330 04-

Physics

Albedo, Cometary Atmospheres, Halley'S Comet, Infrared Imagery, Thematic Mapping, Comet Nuclei, Cosmic Dust, Infrared Spectra

Scientific paper

An albedo map is presented of comet Halley from a 10 micrometer image taken from the Wyoming Infrared Observatory on 13 Mar. 1986, and a 7311 A CCD image taken from the Anglo-Australian Telescope about an hour later. To construct this map, the CCD image was first converted from 0.49 arcsec/pixel to 1 arcsec/pixel to match the scale of the 10 micron image, then both were calibrated in lambda Flambda units. According to the albedo map, most of the inner coma of Halley lies between gamma = 0.04 and 0.08. The overall smoothness of the map is remarkable considering the large dynamic range of the optical and IR maps, and the differences in spatial resolution and image processing.

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