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Density and refractive index of binary CH4, N2 and CO2 ice mixtures
Authors:R. Luna  M.Á. Satorre  M. Domingo  C. Millán  C. Santonja
Affiliation:Centro de tecnologías Físicas, Universitat Politècnica de València, 46022 Valencia, Spain
Abstract:In this work we present the results of a series of laboratory experiments performed to obtain the density and the real part of the refractive index of binary mixtures of ices of astrophysical interest. Densities of CO2:CH4 mixtures obey the expected weighted mean and the other binary mixtures have densities up to 20% lower than expected. Refractive index for all the binary mixtures deviates up to 5% from the theoretical, obtaining higher values than expected for CO2:CH4 and lower values than predicted for CO2:N2 and CH4:N2.
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