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- W63974419 abstract "We present AKARI/IRC observations of a sample of six extremely red IRAS sources, of which three are variable OH/IR stars and the rest are early post-AGB stars. The OH/IR stars show a red continuum with the expected strong 10 micron silicate absorption feature, while the post-AGB stars show an even redder continuum accompanied with a comparably weak silicate absorption. We modelled the spectral energy distributions with DUSTY. While for the OH/IR stars a reasonable fit can be obtained with almost pure silicate dust, the post-AGB stars require a mixture of silicate and carbon-rich dust. We assume that in the latter objects the inner dust shell is carbon-rich, while the outer shells are still oxygen-rich." @default.
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- W63974419 date "2009-04-27" @default.
- W63974419 modified "2023-09-27" @default.
- W63974419 title "AKARI/IRC observations of heavily obscured oxygen-rich AGB and post-AGB stars" @default.
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- W63974419 hasPublicationYear "2009" @default.
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