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The unusual silicate dust around HV 2310, an evolved star in the large Magellanic cloud

Sloan, G C; Devost, D; Bernard-Salas, J; Wood, Peter R; Houck, J R


The spectrum of HV 2310, an evolved star in the Large Magellanic Cloud, taken with the Infrared Spectrograph (IRS) on the Spitzer Space Telescope, reveals the presence of an optically thin shell of silicate dust with unusual spectral structure in the 10 μm feature: an emission peak at 9.7 μm, a saddle at 10.4 μm, and an extended shoulder to 11.2 μm. This structure is similar to spectra from crystalline silicate grains, and of the available optical constants, forsterite provides the best fit....[Show more]

CollectionsANU Research Publications
Date published: 2006
Type: Journal article
Source: Astrophysical Journal, The
DOI: 10.1086/498076


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