Physical Properties Of Asteroids Observed In The S-COSMOS Field

Details Physical Properties Of Asteroids Observed In The S-COSMOS Field Physical Properties Of Asteroids Observed In The S-COSMOS Field

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.3905b&link_type=abstract

American Astronomical Society Meeting 210, #39.05; Bulletin of the American Astronomical Society, Vol. 39, p.152

Astronomy and Astrophysics

Astronomy

Scientific paper

The Spitzer COSMOS program provides a unique opportunity to examine the size distributions and physical properties of smaller, darker asteroids. Although this project is designed as an extragalactic survey, the preliminary “MIPS-deep” component is sensitive to point sources as faint as 70 μJy at 24 μm, corresponding to asteroids with diameters as small as a few tens of meters. The data have been taken near βEcl = -9 ° over a period of 52 hours, reobserving a 20’ x 30’ field fifteen times. The high number of exposures taken by S-COSMOS allows for the identification of slow-moving outer solar system small bodies as well as Main Belt Asteroids. We present numbers counts, photometric measurements, and distances for selected objects and use these values to derive physical properties. More than 60 moving sources have been identified, and fewer than 20% of these sources correspond to previously known asteroids in the JPL/Horizons database.

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