Zodiacal light disk around Sirius?

Details Zodiacal light disk around Sirius? Zodiacal light disk around Sirius?

Feb 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001padeu..11...59k&link_type=abstract

Publications of the Astronomy Department of the Eötvös University No. 11, Proceedings of the National Postgraduate Reunion in As

Astronomy and Astrophysics

Astrophysics

Circumstellar Dust, Vega-Like Stars, Individual Objects: Sirius

Scientific paper

We have detected a far-infrared excess in the ISOPHOT measurements of the brightest star of the night sky, Sirius. The most plausible explanation of this excess would be the presence of a dust disk in the Sirius system. Calculations have shown that the parameters of the possible dust disk are intermediate between that of the solar system's zodiacal light cloud and that of Vega-type stellar systems. This is lowest mass disk ever detected (M disk 1/500*M Moon) and may be the first example of very low mass disks outside our solar system. If these kind of disks are common around A-type stars, the detection of planets by mid-infrared interferometry might be limited by the radiation of the disk as well.

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