A search for the 10-micron silicate feature in periodic Comet Grigg-Skjellerup

Details A search for the 10-micron silicate feature in periodic Comet Grigg-Skjellerup A search for the 10-micron silicate feature in periodic Comet Grigg-Skjellerup

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984aj.....89..170h&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 89, Jan. 1984, p. 170, 171. Research supported by the Science and Engineering Resear

Astronomy and Astrophysics

Astronomy

10

Abundance, Grigg-Skjellerup Comet, Infrared Spectra, Silicates, Cometary Atmospheres, Cosmic Dust, Emission Spectra

Scientific paper

A 10-micron spectrum of periodic Comet Grigg-Skjellerup was obtained on 22 June 1982 with the UCL array spectrometer at the United Kingdom Infrared Telescope, Mauna Kea. No emission feature is obvious in the spectrum. The observed spectrum can be fit equally well by a model of small hot absorbing grains or by a composite model with less than or equal to 30 percent (3sigma) warm, 'dirty' silicate grains. The latter model is consistent with the silicate abundance in Comet Kohoutek, which did display an emission feature at 10 microns.

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