The submillimeter radio continuum of Comet P/Brorsen-Metcalf

Details The submillimeter radio continuum of Comet P/Brorsen-Metcalf The submillimeter radio continuum of Comet P/Brorsen-Metcalf

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...365..738j&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 365, Dec. 20, 1990, p. 738-747. Research supported by NSF.

Astronomy and Astrophysics

Astronomy

11

Comet Nuclei, Continuous Radiation, Radio Sources (Astronomy), Submillimeter Waves, Thermal Emission, Radio Astronomy, Radio Telescopes, Spectrum Analysis

Scientific paper

Observations of Comet P/Brorsen-Metcalf in the submillimeter radio continuum are presented. The observations were taken using the James Clerk Maxwell Telescope on Mauna Kea, and include the first truly submillimeter detection of a comet, and the first submillimeter continuum spectrum. The submillimeter radiation is attributed to thermal emission from a transient population of large grains with a total mass of (1-10) x 10 to the 9th kg. The large grains may be produced by catastrophic failure of part of the refractory mantle on the surface of the cometary nucleus. Models of the submillimeter continuum are discussed.

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