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The Plausibility of Silicate-Core Ice-Mantle Grains

  • M. J. Dempsey
  • N. C. Wickramasinghe
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 55)

Abstract

Extinction curves for silicate-core ice-mantle grains are computed and compared with the infrared spectral data on the BN object in the Orion nebula. A ratio of outer mantle to core radius of 1.3 which best fits this data suggests that silicate-core ice-mantle grains are unlikely to contribute a major part to the total visual extinction coefficient of interstellar material.

Keywords

Core Radius Monthly Notice Interstellar Extinction Extinction Curve Visual Extinction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© D. Reidel Publishing Company, Dordrecht, Holland 1976

Authors and Affiliations

  • M. J. Dempsey
    • 1
  • N. C. Wickramasinghe
    • 1
  1. 1.Dept. of Applied Mathematics and AstronomyUniversity CollegeCardiff, WalesUK

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