Upper Limits on the Number of Small Bodies in Sedna-Like Orbits by the TAOS Project

Details Upper Limits on the Number of Small Bodies in Sedna-Like Orbits by the TAOS Project Upper Limits on the Number of Small Bodies in Sedna-Like Orbits by the TAOS Project

2009-10-28

arxiv.org/abs/0910.5282v1

Astronomy and Astrophysics

Astrophysics

Earth and Planetary Astrophysics

25 pages, 13 figures

Scientific paper

We present the results of a search for occultation events by objects at distances between 100 and 1000 AU in lightcurves from the Taiwanese-American Occultation Survey (TAOS). We searched for consecutive, shallow flux reductions in the stellar lightcurves obtained by our survey between 7 February 2005 and 31 December 2006 with a total of $\sim4.5\times10^{9}$ 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.

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