A WISE Look at Near Earth Objects

Details A WISE Look at Near Earth Objects A WISE Look at Near Earth Objects

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21940102m&link_type=abstract

American Astronomical Society, AAS Meeting #219, #401.02

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Scientific paper

With the Wide-field Infrared Survey Explorer's project for solar system exploration (known as NEOWISE), we have observed more than 157,000 asteroids and comets in wavelengths ranging from 3 - 22 microns. This number includes the discovery of more than 33,000 new asteroids, mostly in the Main Belt. NEOWISE detected more than 500 near-Earth objects (NEOs) and 135 comets, including the discovery of 135 new NEOs and 21 new comets. The NEOWISE project detected moving objects in a highly uniform fashion with well-known survey biases, allowing predictions of the numbers, sizes, and albedos to be made for various populations with greater precision than previous estimates. We have made an estimate of the numbers, sizes and albedos of the near-Earth asteroids, yielding the means to obtain an improved understanding of both the hazard they pose to the Earth as well as their origins and evolution. Similar analyses can be applied to other asteroid populations throughout the solar system, including the Main Belt, Jovian Trojans, and Hildas. Current results from the NEOWISE project will be summarized.

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