Tracing the Development of Dust around Evolved Stars: The Case of 47 Tuc.
We observed mid-infrared (7.5-22 μm) spectra of asymptotic giant branch (AGB) stars in the globular cluster 47 Tuc with the Spitzer Space Telescope, and we find significant dust features of various types. A comparison of the characteristics of the dust s
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|Source:||Astrophysical Journal, The|
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