The Nature of the Dust Disc Surrounding BD+31°643

The Nature of the Dust Disc Surrounding BD+31°643

Multicolour imaging polarimetry of the main sequence star BD+31 ° 643 shows that the Kalas & Jewitt (1997) disc extends to at least 13000AU. A disc of this radius must be dynamically very young compared to the central star, unlike the situation found in the β Pictoris system. A striking linear f...

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Veröffentlicht in:Symposium - International Astronomical Union 2004, Vol.202, p.396-398
Hauptverfasser: Wolstencroft, Ramon D., Andersson, B-G, Draper, Peter W., Moriarty-Schieven, Gerald, Stockdale, David P., Wannier, Peter
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Sprache:eng
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Zusammenfassung:Multicolour imaging polarimetry of the main sequence star BD+31 ° 643 shows that the Kalas & Jewitt (1997) disc extends to at least 13000AU. A disc of this radius must be dynamically very young compared to the central star, unlike the situation found in the β Pictoris system. A striking linear filament of 850μm emission detected 50″ south, that parallels the dust disk, is probably not physically associated.
ISSN:0074-1809
DOI:10.1017/S0074180900218378