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

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Abstract

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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Authors and Affiliations

  1. Gunma Astronomical Observatory, 1-18-7 Ohotomo, Maebashi, Gunma, 371, Japan

    O. Hashimoto

  2. Okayama Astrophysical Observatory, National Astronomical Observatory Kamogata, Asaguchi, Okayama, 719-02, Japan

    H. Izumiura

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  1. O. Hashimoto
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  2. H. Izumiura
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Hashimoto, O., Izumiura, H. A Compact Circumstellar Dust Envelope of an Evolved AGB Star IRC-10529. Astrophysics and Space Science 251, 207–210 (1997). https://doi.org/10.1023/A:1000749025676

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  • DOI: https://doi.org/10.1023/A:1000749025676

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