First detection of dust clouds around R CrB variable stars

From VLT/NACO diffraction-limited images of RY Sgr, we report the first direct detection of heterogeneities in the circumstellar envelope of a R Coronae Borealis variable star. Several bright and very large dust clouds are seen in various directions at several hundred stellar radii from RY Sgr, reve...

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Veröffentlicht in:	Astronomy and astrophysics (Berlin) 2004-12, Vol.428 (1), p.L13-L16
Hauptverfasser:	de Laverny, P., Mékarnia, D.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astrophysics Cosmology and Extra-Galactic Astrophysics Physics Sciences of the Universe stars: AGB and post-AGB stars: circumstellar matter stars: individual: RY Sgr stars: mass-loss stars: variables: general techniques: high angular resolution
Online-Zugang:	Volltext
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