Compact Rings Around the Eclipsing Binary RY Scuti

Details Compact Rings Around the Eclipsing Binary RY Scuti Compact Rings Around the Eclipsing Binary RY Scuti

Jan 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...19312504s&link_type=abstract

American Astronomical Society, 193rd AAS Meeting, #125.04; Bulletin of the American Astronomical Society, Vol. 31, p.670

Astronomy and Astrophysics

Astronomy

Scientific paper

We present HST/WFPC2 observations of the very massive eclipsing binary RY Scuti. This evolved, common envelope system is surrounded by a compact ionized nebula at the inner edge of a more extended, silicate-rich circumstellar dust torus. The HST images resolve the ionized component into two bilaterally symmetric circumstellar rings, above and below the equatorial plane of the system. These rings are reminiscent of the rings around SN1987a, but seen nearly edge-on. The complex asymmetric structure of the nebula may serve as a probe of the radiation driven stellar wind geometry in this near-Eddington limit contact binary.

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