Just some more info for those that are interested in this.
A good article with an unreal artists impression to put it in prospective is on the
Gemini Observatory site, and another article from the
NASA site.
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There was an IR spectrum consistent with dust. Now there isn't. It's not like someone went and collected a dust sample. Hopefully the new data will improve the precision and chain of logic in estimating dust (and other) surroundings of stars.
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They came to the conclusion from all the IR gear below, I think they have all the data they need to say something really strange did happen. If there was no dust at all and the original data was in error, what dose that say for the rest of the data we have?
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But nothing like the disappearing dust disk at TYC 8241 2652 had ever been seen during these three decades. The result is based upon multiple sets of observations of TYC 8241 2652 obtained with the Thermal-Region Camera Spectrograph (T-ReCS) on the Gemini South telescope in Chile, the IRAS satellite, the Wide-field Infrared Survey Explorer (WISE) satellite, NASA's Infrared Telescope on Mauna Kea in Hawai`i, the Herschel Space Telescope of the European Space Agency, and AKARI (a Japanese/ESA infrared satellite).
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