Abstract
We have used the catalogue of dark nebulae compiled by Lynds (1962) to investigate the geometrical nature of the darkest, opacity class 5 to 6, clouds. There would appear to be some evidence that these objects are fractals of dimensionD=1.4.
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Beech, M. Are lynds dark clouds fractals?. Astrophys Space Sci 133, 193–195 (1987). https://doi.org/10.1007/BF00637432
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DOI: https://doi.org/10.1007/BF00637432