NOAO >   Observing Info >   Approved Programs >   2005B-0399

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Proposal Information for 2005B-0399


PI: Tommy Grav, University of Hawaii, grav@ifa.hawaii.edu
Address: Institute for Astronomy, 2680 Woodlawn Drive, Honolulu, HI 96822, USA

CoI: Mark Sykes, Planetary Science Institute
CoI: Michael E. Brown, California Institute of Technology

Title: Albedos of Irregular Satellites with Spitzer: The Saturnians

Abstract: The outer solar system is filled with small bodies that hold some of the keys to understanding the formation and evolution of the giant planets and the solar system itself. The Kuiper Belt, Centaurs and irregular satellites are considered to be from the same phase space of the solar system, although the exact connection remains unknown. We propose to perform a series of observations on the small bodies of the solar system with the goal of understanding their physical composition and characteristic. \bf Albedos of Irregular Satellites with Spitzer: The Saturnians is part of our Spitzer InfraRed Telescope Facility project \it "Determining Albedos and Sizes for Irregular Satellites of Jupiter and Saturn" (PI: Grav). We propose to support the infrared observations by performing visual observations of our Saturnian Spitzer targets using the WIYN telescope at Kitt Peak. The visual observations are essential in determining the albedo and size of the targets. The observations will be used to determine rotational periods and amplitudes, as well as phase angle light curves for the six brightest Saturnian irregular satellites, allowing us to do more detailed thermal modeling using the Spitzer and ground based observations.


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