8-13 micron spectroscopy and IR photometry of Comet P/Brorsen-Metcalf (1989o) near perihelion

Details 8-13 micron spectroscopy and IR photometry of Comet P/Brorsen-Metcalf (1989o) near perihelion 8-13 micron spectroscopy and IR photometry of Comet P/Brorsen-Metcalf (1989o) near perihelion

Jun 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar...97..269l&link_type=abstract

Icarus (ISSN 0019-1035), vol. 97, no. 2, June 1992, p. 269-275. Research supported by Aerospace Corp.

Astronomy and Astrophysics

Astronomy

15

Brorsen-Metcalf Comet, Cosmic Dust, Halley'S Comet, Infrared Photometry, Infrared Spectroscopy, Infrared Telescopes, Astronomical Spectroscopy, Perihelions, Silicates, Thermal Emission

Scientific paper

Thermal IR spectrophotometry of Comet P/Brorsen-Metcalf near perihelion was obtained during August 28-September 6, 1989, by the NASA IRTF; these data are presently compared with results for Comet P/Halley. The spectra, which lacked silicate emission, are consistent with 400-430 K grey body emission. The grains are on these bases inferred to have been larger than typical for either new comets or P/Halley. Attention is given to the composition, mass, temperature, and character of the cometary dust in view of Comet P/Halley study results.

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