Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995adspr..16...41o&link_type=abstract
Advances in Space Research (ISSN 0273-1177), vol. 16, no. 2, p. (2)41-(2)49
Astronomy and Astrophysics
Astronomy
8
Dark Matter, Planetary Surfaces, Protoplanets, Absorption Spectra, Albedo, Carbon Compounds, Infrared Astronomy
Scientific paper
There are now a large number of small bodies in the outer solar system that are known to be covered with dark material. Attempts to identify that material have been thwarted by the absence of discrete absorption features in the reflection spectra of these planetesimals. An absorption at 2.2 micrometers that appeared to be present in several objects has not been confirmed by new observations. Three absorptions in the spectrum of the unusually red planetesimal 5145 Pholus are well-established, but their identity remains a mystery.
Cruikshank Dale
de Bergh Catherine
Geballe Theodore
Owen Theodore
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