Spitzer Space Telescope - Guaranteed Time Observer Proposal #67


IRS and MIPS SED observations of Centaurs and Kuiper Belt Objects

Principal Investigator: Dale Cruikshank
           Institution: NASA-Ames

Science Category: Kuiper belt objects 
 Observing Modes: IrsStare 
  Hours Approved: 11.6 

Abstract:
We examine the spectra of Centaurs and Kuiper Belt Objects using the
IRS and MIPS SED, using a target list which is a subset of the MIPS
photometry list developed by Stansberry.  The observations generally
use the Long Lo module of the IRS, but other modules are used for the
brightest Centaurs.  When used in conjunction with the MIPS photometry
observations, hIgh S/N observations of the brightest sources will
provide compositional information, while low S/N observations of
fainter sources will be used to constrain the albedo, size, and
thermal properties of these objects.