Preliminary Results from the Wide-field Infrared Survey Explorer's NEOWISE Search for Minor Planets

Details Preliminary Results from the Wide-field Infrared Survey Explorer's NEOWISE Search for Minor Planets Preliminary Results from the Wide-field Infrared Survey Explorer's NEOWISE Search for Minor Planets

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufm.p21e..06m&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #P21E-06

Physics

[6205] Planetary Sciences: Solar System Objects / Asteroids

Scientific paper

The Wide-Field Infrared Survey Explorer (WISE) imaged the entire sky twice between January, 2010 and January, 2011 at four wavelengths spanning the near through mid-IR at sensitivities hundreds of times greater than previous surveys [1]. The WISE band-passes (3.4, 4.6, 12 and 22mm) sample the flux from most inner-solar-system bodies near the peak of their thermal emission. Overlapping sky regions were sampled repeatedly at 3 hour intervals. The same region of sky was observed a minimum of 8 times. While the primary WISE science objectives focus on ultra-luminous infrared galaxies and brown dwarfs, additions to the baseline WISE pipeline (collectively known as "NEOWISE") have enabled the detection of undiscovered moving objects, as well as previously known bodies [2]. NEOWISE has detected more than 155,000 minor planets, including more than 500 near-Earth objects (NEOs), ~2000 Jupiter Trojans, ~120 comets, and ~20 outer Solar System objects such as Centaurs. The survey has discovered ~34,000 new minor planets, including 130 new NEOs and 20 new comets. The NEOWISE data will drive a wide range of new Solar System investigations. NEOWISE allows precise determination of IR-derived diameters and albedos for minor planets throughout the Solar System [3],[4]. We will summarize the latest results from the project, including studies of the statistical properties of asteroid populations such as the NEOs, and comparisons between albedo and asteroid taxonomic classification.

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