A Search for Rapidly Rotating Asteroids in the Few-Hundred-Meter Size Range

Details A Search for Rapidly Rotating Asteroids in the Few-Hundred-Meter Size Range A Search for Rapidly Rotating Asteroids in the Few-Hundred-Meter Size Range

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006dda....37.0102s&link_type=abstract

American Astronomical Society, DDA meeting #37, #1.02; Bulletin of the American Astronomical Society, Vol. 38, p.666

Astronomy and Astrophysics

Astronomy

Scientific paper

Rapidly rotating asteroids, with rotation periods under 2 hours, appear abruptly below a diameter of approximately 150 m. Roughly 40 such objects are now known, with periods ranging all the way down to just over one minute. These objects are generally considered to be monolithic, although rubble piles bound by weak cohesion are not ruled out by current data. The cohesive rubble pile model predicts a gradual transition between slow and fast rotators as a function of size; yet currently there is only a single known object (2001 OE84) with a diameter above 200 m and rapid rotation. We will report on initial results from an observational program on the 2.4 m Hiltner telescope at MDM Observatory to search for rapid rotators among NEAs in the 200 m to 1 km size range.

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