The Composition of Centaur 5145 Pholus

  title={The Composition of Centaur 5145 Pholus},
  author={Dale P. Cruikshank and Ted L. Roush and Mathew Bartholomew and Thomas R. Geballe and Yvonne J. Pendleton and Simon Mathieu White and James F. Bell and John Keith Davies and Tobias C. Owen and Catherine de Bergh and David J. Tholen and Max P. Bernstein and Robert H. Brown and Kimberly A. Tryka and Cristina Dalle Ore},
Abstract We present a new spectrum of the Centaur object 5145 Pholus between 1.15 and 2.4 μm. We model this, and the previously published (0.4- to 1.0-μm) spectrum, using Hapke scattering theory. Seen in absorption are the 2.04-μm band of H 2 O ice and a strong band at 2.27 μm, interpreted as frozen methanol and/or a photolytic product of methanol having small molecular weight. The presence of small molecules is indicative of a chemically primitive surface, since heating and other processes… 

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  • Chemistry
    Advances in space research : the official journal of the Committee on Space Research
  • 1984