PI: Josh Emery, University of Tennessee, email@example.com
Address: Earth and Planetary Sciences, 1412 Circle Dr, Knoxville, TN 37996, USA
CoI: Noemi Pinilla-Alonso, University of Tennessee
CoI: David Trilling, Northern Arizona University
CoI: Daine Wright, University of Tennessee
CoI: Cristina Thomas, Northern Arizona University
CoI: Cristina Dalle Ore, SETI Institute
Title: Near-Infrared photometry of KBOs and Centaurs in support of Spitzer space telescope data.
Abstract: We propose to measure near-infrared broadband colors of Centaurs and Kuiper Belt objects (KBOs). The proposed ground-based observations will support 3.6 and 4.5 (micron) photometry of these bodies obtained with the Infrared Array Camera (IRAC) on the Spitzer space telescope. In semester 2011B we obtained Gemini NIR data for 12 KBOs (results will be presented on two different works at 2012 DPs Meeting), we need more time to complete our successful study and cover a larger amount of targets from our sample of Spitzer data. Extending reflectances past 2.5 (micron) with Spitzer enables sensitive searches for absorptions in the 3 to 5 (micron) region, where relevant species (e.g., complex organics, H_2O, CO_2, CH_4, hydrated silicates) have their fundamental absorption bands. In order to assess the presence of absorptions, however, the Spitzer photometry must be tied to shorter wavelength near- infrared reflectances.
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