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Mineral grains and the 10 and 20 μm spectral features in the Trapezium nebula

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Abstract

The infrared emission observed for dust in the Trapezium nebula over the waveband 8–40 μm cannot be explained on the basis of a simple silicate model involving either terrestrial or lunar silicates. Laboratory measurements were carried out to determine the opacity coefficient of finely crushed Murchison meteorite material. Murchison material (including organics within it) provides a better fit to the Trapezium data than any known silicate, but the agreement is inferior to that obtained for a diatom model.

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Authors and Affiliations

  1. University College, Cardiff, Wales, U.K.

    Q. Majeed, N. C. Wickramasinghe & F. Hoyle

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  1. Q. Majeed
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  2. N. C. Wickramasinghe
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  3. F. Hoyle
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Majeed, Q., Wickramasinghe, N.C. & Hoyle, F. Mineral grains and the 10 and 20 μm spectral features in the Trapezium nebula. Astrophys Space Sci 141, 399–405 (1988). https://doi.org/10.1007/BF00639505

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  • DOI: https://doi.org/10.1007/BF00639505

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