High Resolution Imaging of the Massive Overcontact Binary RY Scuti

Details High Resolution Imaging of the Massive Overcontact Binary RY Scuti High Resolution Imaging of the Massive Overcontact Binary RY Scuti

Jul 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996hst..prop.6492g&link_type=abstract

HST Proposal ID #6492

Computer Science

Hst Proposal Id #6492 Binaries And Star Formation

Scientific paper

RY Scuti is a post-main sequence, eclipsing, 'overcontact' binary. The two components are very massive, 49 and 39 M_odot , with a combined luminosity in excess of 3* 10^6L_odot . Ground based observations have established that this star is surrounded with a very unusual nebula about 1 arcsecond in extent containing both ionized gas and thermally emitting dust. The Ne abundance in the nebula is well above solar composition, indicating the system is at a critical phase of its evolution. We propose to image the nebulosity around RY Scuti to investigate its morphology and the mass loss process in the system. We will use these images to distinguish between hypothesized mass loss scenarios and to study the interface between the plasma and dust regions of the nebula.

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