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Infrared spectrophotometry of Comet IRAS-Araki-Alcock (1983d): a bare nucleus revealed?

Abstract:

Spectra of the central core and surrounding coma of Comet IRAS-Araki-Alcock (1983d) were obtained at 8-13 μm on 11 May and 2-4 μm on 12 May 1983. Spatially resolved measurements at 10 μm with a 4-arcsec beam showed that the central core was more than 100 times brighter than the inner coma only 8 arcsec away; for radially outflowing dust, the brightness ratio would be a factor of 8. The observations of the central core are consistent with direct detection of a nucleus having a radius of approx...

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Authors


Hanner, MS More by this author
Aitken, DK More by this author
McCorkle, S More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
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Journal:
Icarus
Volume:
62
Issue:
1
Pages:
97-109
Publication date:
1985
DOI:
EISSN:
1090-2643
ISSN:
0019-1035
URN:
uuid:d11469c9-631d-40c3-8c0a-4e2f0b6bcdc2
Source identifiers:
345221
Local pid:
pubs:345221
Language:
English

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