Other
Scientific paper
Jun 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976pasp...88..342o&link_type=abstract
Astronomical Society of the Pacific, Publications, vol. 88, June 1976, p. 342-348.
Other
6
Kohoutek Comet, Mass Transfer, Molecular Flow, Particle Emission, Water Loss, Abundance, Albedo, Astronomical Photometry, Clathrates, Particle Mass, Perihelions
Scientific paper
Observational results are brought together to establish the mass loss of Comet Kohoutek (1973 XII) in H2O, solid particles, and other molecules. The production rate of molecules is seen to have flattened prior to peaking near perihelion passage, and then fell below the rate for the incoming branch of the orbit. The total mass loss was about 10 to the 14th power gm. All abundances are consistent with a clathrate-dominant form of water. Comparison of the sizes of the nucleus as calculated from photometry and the rate of water loss requires that either an unrealistically high albedo be assumed or that only a portion of the nucleus was covered by water, in contrast with previous expectations for a new and probable first-passage comet. Moreover, if the preperihelion estimates of the nuclear brightness are rejected as being contaminated, the resulting values indicate an ice-covered nucleus with a radius of 2.1 km.
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