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Evolution from protoplanetary to debris discs: The transition disc around hd 166191

Kennedy, G. M.; Murphy, S. J.; Russell, Ray W.; Lisse, Casey; Menard, Francois C.; Bayliss, Daniel; Sitko, Michael L.; Wyatt, M. C.; DeMeo, F. E.; Zhou, Guyin (George)


HD 166191 has been identified by several studies as hosting a rare and extremely bright warm debris disc with an additional outer cool disc component. However, an alternative interpretation is that the star hosts a disc that is currently in transition between a full gas disc and a largely gas-free debris disc. With the help of new optical to mid-infrared (IR) spectra and Herschel imaging, we argue that the latter interpretation is supported in several ways: (i) we show that HD 166191 is...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stt2435


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