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Al 2 O 3 dust in OH/IR stars

Maldoni, Marco; Ireland, Trevor; Smith, R. Chris; Robinson, G


The presence of amorphous Al2O3 in the shells of five OH/IR stars has been investigated via radiative transfer modelling of their respective spectral energy distributions (SEDs). The results show that the inclusion of this species in the models leads to excellent fits to the respective 10-μm silicate bands as well as the region between the 10- and 20-μm silicate bands. The formation of Al2O3, or Al-O bonds within early condensates, is an accepted feature of theoretical models of dust...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1111/j.1365-2966.2005.09314.x


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