Abstract
Nanometre-sized microdiamonds of the type recently discovered in meteorites could make up a significant fraction of interstellar carbon, and thus explain the observed excess of interstellar extinction at ultraviolet wavelengths.
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Wickramasinghe, N., Hoyle, F. Microdiamonds and the Ultraviolet Extinction of Starlight. Astrophysics and Space Science 259, 379–383 (1998). https://doi.org/10.1023/A:1001773311333
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DOI: https://doi.org/10.1023/A:1001773311333