Infrared observations of Comet Kohoutek /1973f/

Details Infrared observations of Comet Kohoutek /1973f/ Infrared observations of Comet Kohoutek /1973f/

Dec 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974icar...23..561g&link_type=abstract

Icarus, vol. 23, Dec. 1974, p. 561-565.

Astronomy and Astrophysics

Astronomy

12

Astronomical Photometry, Infrared Astronomy, Kohoutek Comet, Luminous Intensity, Brightness Temperature, Cosmic Dust, Light Scattering, Perihelions, Sunlight, Tables (Data)

Scientific paper

Comet Kohoutek has been observed at wavelengths between 1.25 and 12.5 microns before and after perihelion passage extending to comet-sun distances of 1 AU. The luminosity and the variation of brightness with comet-sun distance in the infrared are extraordinarily similar to those of Comet Ikeya-Seki (1965f). Apart from an apparent 'silicate' emission feature near 10 microns, the spectrum of the comet between 3.5 and 12.5 microns is close to that expected from emission by grey particles. Hotter particles and scattered sunlight produce the bulk of the 1.25- to 3.5-micron emission.

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