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UPPER LIMITS ON THE NUMBER OF SMALL BODIES IN SEDNA-LIKE ORBITS BY THE TAOS PROJECT
Wang, J.-H.,Lehner, M. J.,Zhang, Z.-W.,Bianco, F. B.,Alcock, C.,Chen, W.-P.,Axelrod, T.,Byun, Y.-I.,Coehlo, N. ,K.,Cook, K. H.,Dave, R.,de Pater, I.,Porrata, R.,Kim, D.-W.,King, S.-K.,Lee, T.,Lin, American Institute of Physics 2009 The Astronomical journal Vol.138 No.6
<P>We present the results of a search for occultation events by objects at distances between 100 and 1000 AU in light curves from the Taiwanese-American Occultation Survey. We searched for consecutive, shallow flux reductions in the stellar light curves obtained by our survey between 2005 February 7 and 2006 December 31 with a total of ~4.5 × 10<SUP>9</SUP> three-telescope simultaneous photometric measurements. No events were detected, allowing us to set upper limits on the number density as a function of size and distance of objects in Sedna-like orbits, using simple models.</P>