Serendipitous Identification of Main Belt and Trojan Asteroids in Spitzer Space Telescope Data

Details Serendipitous Identification of Main Belt and Trojan Asteroids in Spitzer Space Telescope Data Serendipitous Identification of Main Belt and Trojan Asteroids in Spitzer Space Telescope Data

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007dps....39.3007b&link_type=abstract

American Astronomical Society, DPS meeting #39, #30.07; Bulletin of the American Astronomical Society, Vol. 39, p.470

Astronomy and Astrophysics

Astronomy

Scientific paper

The mid-infrared thermal emission peak of solar system small bodies makes them ideally suited for observation by the Spitzer Space Telescope, and Spitzer routinely detects Main Belt Asteroids (MBA's) in the vicinity of the ecliptic plane. By examining ultra-deep observations from the extragalactic COSMOS program, we present the first serendipitous thermal identification of known Trojan asteroids by Spitzer. Up to 15 separate observations at at β = -9o, sensitive down to 0.3 mJy at 24 μm, are available per asteroid, enabling the detection of sub-km objects. This work provides lightcurves and distances for these Trojans, as well as for a number of MBA's, both known and unknown. We find a source density of 270 - 360/deg2

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