Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...140l..13e&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 140, no. 1, Nov. 1984, p. L13-L15.
Astronomy and Astrophysics
Astrophysics
5
Astronomical Photometry, Comets, Infrared Photometry, Near Infrared Radiation, Dust, Silicates, Spatial Distribution
Scientific paper
Near IR photometry of comet P/Crommelin has been recorded on March 19, 1984 at ESO (La Silla) in the J, H, and K filters. The (J-H) and (H-K) values are compatible with a silicate composition of micron-size particles; there is no evidence for absorbing particles. The comparison with other observations performed with different diaphragm sizes could indicate a marginal departure from the r-2 density distribution (r distance to the nucleus).
Encrenaz Th.
Engels Dieter
Krautter Joachim
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