Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21732003r&link_type=abstract
American Astronomical Society, AAS Meeting #217, #320.03; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
The zodiacal light is sunlight scattered by interplanetary dust particles, which are produced by asteroids, comets, and Kuiper Belt Objects. The zodiacal light has been well observed in the inner Solar System, including Helios and Pioneer spaceprobes that have measured the radial density variation from 0.3 to 3 AU and recently Spitzer measuring the azimuthal structure at 1 AU. The outer Solar System remains a relatively new frontier. The outer System will contain debris from collisions among KBOs, long-period comets, micrometeorids from the inner Solar System, and interplanetary dust. Measuring the radial variation of dust density will determine the production rate from KBO collisions and determine whether KBO debris reach the inner Solar System, in which case it can be collected locally and studied in laboratories. I will present the state of knowledge of outer Solar System dust and the prospects for measuring the Outer Zodiacal Light.
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