NOAO >   Observing Info >   Approved Programs >   2011B-0400

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Proposal Information for 2011B-0400


PI: Charles Telesco, University of Florida, telesco@astro.ufl.edu
Address: Department of Astronomy, PO Box 112055, 211 Bryant Space Science Center, Gainesville, FL, 32611-2055, USA

CoI: Dan Li, University of Florida
CoI: Margaret Moerchen, European Southern Observatory
CoI: Chris Wright, University of New South Wales

Title: Resolving an Asteroid Belt in a Multi-Planet System

Abstract: We propose to use MICHELLE at Gemini North to image at 11.6 microns a dust ring associated with the possible asteroid belt in the HR 8799 planetary system where three planets have been imaged (Marois et al. 2008). Our goal is to establish directly for the first time the size of a key component, so-called ring d, of this archetypal system's architecture. Thus far the dust ring's morphology has only been inferred from SED fitting. To quote one researcher, the detailed morphology of ring d "must be dynamically compatible with the presence of the outermost and innermost planets." Our imaging will establish the ring size, which will constrain models of the system dynamics and evolution. In addition, in conjunction with existing SED information, our images will permit substantive constraints on dust particle properties. This program is very feasible with MICHELLE, and we request a total time of 5.6 hours. We welcome this as classical time.


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



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