Computer Science
Scientific paper
May 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sptz.prop30080v&link_type=abstract
Spitzer Proposal ID #30080
Computer Science
Scientific paper
This proposal studies the collisional history and future of asteroids using Spitzer observations, in combination with radar and visible light curve data available from the literature or from our collaborators. There are 3 specific topics in this theme: the Yarkovsky Effect, the YORP effect, and recent collision-generated asteroid families. Understanding the formation and migration of asteroids into potentially hazardous (or useful) orbits in the Near-Earth region requires relating all three topics. The Yarkovsky Effect is the force on a small body due to asymmetric re-radiation of absorbed sunlight on the warmer "afternoon" side of a spinning asteroid. The YORP Effect is the angular momentum complement to Yark, in which thermal radiation by a surface of an irregularly shaped object results in a torque which may secularly affect both the rotation frequency and the obliquity of the spin axis.
Ostro Steve
Reitsema Harold
Spitale Joe
Van Cleve Jeffrey
Vokrouhlicky David
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