Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990liaco..29..397j&link_type=abstract
In ESA, From Ground-Based to Space-Borne Sub-mm Astronomy p 397-399 (SEE N91-21986 13-89)
Astronomy and Astrophysics
Astronomy
Astronomy, Cometary Atmospheres, Comets, Dust, Interstellar Matter, Photometry, Submillimeter Waves, Giotto Mission, Grain Size, Halley'S Comet, Molecular Clouds
Scientific paper
Initial submillimeter continuum photometry of comets and the resulting implications for large particles in comets are discussed. Measurements carried out during the Giotto and Vega Halley comet encounters are discussed. Two conclusions are made about cometary grains. One is that the rate of supply of mass to meteor streams and the zodiacal cloud may be significantly larger than previously known. The second conclusion is that there is independent evidence for large grains both in the stellar disks and in the comets thought to have been formed within these disks.
Jewitt David
Luu Jane
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