Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...187..519t&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 187, no. 1-2, Nov. 1987, p. 519-522.
Astronomy and Astrophysics
Astrophysics
30
Astronomical Spectroscopy, Emission Spectra, Halley'S Comet, Infrared Spectra, Black Body Radiation, Carbon, Water
Scientific paper
A 2.8- to 3.7 μm spectrum of comet Halley taken in May 1986 is presented. The spectrum shows (1) the 3.36 μm emission feature that most likely arises from carbonaceous material, (2) a previously unknown emission band at 2.8 - 2.9 μm, and (3) no evidence for the 3 μm water-ice band either in reflection or absorption. The 2.8- to 2.9 μm emission feature does not arise from infrared fluorescence from water or OH. Since LTE emission from water is unlikely, the nature of this feature is uncertain.
Nagata Takahiro
Smith Gary R.
Tokunaga Alan T.
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