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

Autor: R. D. Wolstencroft, Peter W. Draper, Peter G. Wannier, David P. Stockdale, Gerald H. Moriarty-Schieven, B-G Andersson
Rok vydání: 2004
Předmět:
Zdroj: Symposium - International Astronomical Union. 202:396-398
ISSN: 0074-1809
DOI: 10.1017/s0074180900218378
Popis: 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.
Databáze: OpenAIRE