NOAO >   Observing Info >   Approved Programs >   2014A-0420

Small NOAO Logo

Proposal Information for 2014A-0420


PI: Andrew Rivkin, Johns Hopkins University Applied Physics Laboratory, andy.rivkin@jhuapl.edu
Address: Space Department, 11101 Johns Hopkins Road, Laurel, MD 21046, USA

CoI: Josh Emery, University of Tennessee
CoI: David Trilling, Northern Arizona University
CoI: Amanda Gulbis, South Africa Astronomical Observatory
CoI: Jennifer Grier, Planetary Science Institute

Title: How do the surfaces of Trojan asteroids evolve?

Abstract: The Trojan asteroids are a large population of small bodies about which little is known. They are thought to have been transported from beyond Neptune to their current orbits at Jupiter's solar distance, but models are still lacking important constraints. Two color groups have been seen, variously interpreted as due to compositional differences (perhaps reflecting different formation locations) or as due to regolith maturation. We propose a survey of roughly 50 targets as part of a larger multi-telescope survey to map out the abundances of these color groups vs. size, dynamical family membership, and orbit in order to begin to understand the origins of the Trojans and what that implies for early solar system history.


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



NOAO >   Observing Info >   Approved Programs >   2014A-0420

noaoprop-help@noao.edu

Small NOAO Logo