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Spectroscopic diagnostic for the mineralogy of large dust grains
M. Min, C. Dominik, L. B. F. M. Waters
We examine the thermal infrared spectra of large dust grains of different chemical composition and mineralogy. Strong resonances in the optical properties result in detectable spec…
The mineralogy, geometry and mass-loss history of IRAS 16342-3814
C. Dijkstra, L. B. F. M. Waters, F. Kemper +5
We present the 2-200 um Infrared Space Observatory (ISO) spectrum and 3.8-20 um ISAAC and TIMMI2 images of the extreme OH/IR star IRAS 16342-3814. Amorphous silicate absorption fea…
Water ice growth around evolved stars
C. Dijkstra, C. Dominik, S. N. Hoogzaad +2
We present a model of the growth of water ice on silicate grains in the circumstellar envelopes of Asymptotic Giant Branch (AGB) stars and Red Super Giants. We consider the growth…