Resolving an Asteroid Belt in a Multi-Planet System

Details Resolving an Asteroid Belt in a Multi-Planet System Resolving an Asteroid Belt in a Multi-Planet System

Aug 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010noao.prop...52t&link_type=abstract

NOAO Proposal ID #2010B-0052

Computer Science

Scientific paper

We propose to use MICHELLE to image in two mid-IR passbands a dust ring associated with a possible asteroid belt in the HR 8799 planet system where three planets have been recently imaged (Marois et al. 2008). These images will establish directly for the first time the properties of a key component, so-called ring d, of this archetypal system's architecture. Thus far, the ring 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 observations will establish the ring size and possibly the ring shape, the latter providing independent information about the system orientation, which is not currently known with certainty. In addition, our multi-wavelength images will permit some assessment of the dust particle temperature and thereby its size, which will support more detailed consideration of the origin of the particles. This program is very feasibile with MICHELLE. We request a total of 5.8 hours for this program.

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