NOAO >   Observing Info >   Approved Programs >   2003B-0195

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Proposal Information for 2003B-0195


PI: Todd Hillwig, Georgia State University, thillwig@chara.gsu.edu
Address: Physics Department, P.O. Box 4106, Atlanta, GA 30302-4106, U.S.A.

CoI: Doug Gies, Georgia State University

Title: A Search for Extended Emission in the W Ser Binary RY Scuti

Abstract: RY Scuti is a member of the W Ser class of interacting binaries which shows resolved optical, infrared, and radio nebulosity. H(alpha) WFPC2 images show a double-ring shape viewed nearly edge on about 0\farcs5\times1\farcs0 in size. The V=9.14 magnitude central star has limited the exposure times of this system in the past and studies have concentrated on the bright small nebulosity. However, apparent in the WFPC2 images are ``cusps'' suggesting that a higher velocity outflow is being shaped into polar lobes by the dense equatorial ring. We propose to make a deep imaging study of the area around RY Sct to search for faint diffuse polar lobes which may contain significant amounts of ejected mass as well as morphological clues to the processes occurring in the central system.


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