A Compact Circumstellar Dust Envelope of an Evolved AGB Star IRC-10529

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Scientific paper

We have made far-infrared mapping observations around a heavily mass losing evolved star IRC-10529 with ISO. It is found that IRC-10529 shows a very compact circumstellar dust envelope in the 60 and 90 µm images obtained by ISOPHOT. Such a small size of the circumstellar dust envelope indicates very short history of the present strong mass loss. It is very likely that IRC-10529 has just evolved into the final stage of AGB evolution with an extremely high mass-loss rate very recently.

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