Absorption properties of astronomical iron whiskers: an accurate cryogenic model |
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| Authors: | N C Wickramasinghe F Hoyle |
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| Institution: | (1) School of Mathematics, University of Wales College of Cardiff, Cardiff, UK;(2) 102 Admirals Walk, West Cliff Road, Bournemouth, UK |
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| Abstract: | We combine the cryogenically measured value of the DC conductivity of iron with the Drude theory of electrical conduction of metals to determine a complex dielectric function relevant under interstellar and intergalactic conditions. We use this dielectric function to calculate the mass absorption coefficient of randomly oriented iron whiskers with radii 0.01 µm and of various lengths. Some astrophysical and cosmological implications are explored. |
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