IR excesses of late-type WC stars: no dust needed in most cases

IR excesses of late-type WC stars: no dust needed in most cases

Many late-type WC stars exhibit strong IR excesses which have usually been explained by hot dust radiation. Alternatively, we found that free-free and free-bound radiation of a small number of high density clumps beyond the effective radio-emission zone may give rise to “dust-like” IR excesses.

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Veröffentlicht in:Symposium - International Astronomical Union 1995, Vol.163, p.371-372
1. Verfasser: Nugis, T.
Format: Artikel
Sprache:eng
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Zusammenfassung:Many late-type WC stars exhibit strong IR excesses which have usually been explained by hot dust radiation. Alternatively, we found that free-free and free-bound radiation of a small number of high density clumps beyond the effective radio-emission zone may give rise to “dust-like” IR excesses.
ISSN:0074-1809
DOI:10.1017/S0074180900202325