Abstract
It is shown that interstellar extinction between 1 and 10 μm−1 can be obtained from a grain mixture containing Fe3O4, SiO, MgO, and glassy carbon. MgO produces the 220 nm extinction bump and eliminates the need for graphite as a component of interstellar dust.
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Duley, W.W., Najdowsky, I. A fit to the interstellar extinction curve without graphite. Astrophys Space Sci 95, 187–191 (1983). https://doi.org/10.1007/BF00661170
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DOI: https://doi.org/10.1007/BF00661170