Upper limits on the number of small bodies in Sedna-like orbits by the TAOS project

J. H. Wang, M. J. Lehner, Z. W. Zhang, F. B. Bianco, C. Alcock, W. P. Chen, T. Axelrod, Y. I. Byun, N. K. Coehlo, K. H. Cook, R. Dave, I. De Pater, R. Porrata, D. W. Kim, S. K. King, T. Lee, H. C. Lin, J. J. Lissauer, S. L. Marshall, P. ProtopapasJ. A. Rice, M. E. Schwamb, S. Y. Wang, C. Y. Wen

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Abstract

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 × 109 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.

Original languageEnglish
Pages (from-to)1893-1901
Number of pages9
JournalAstronomical Journal
Volume138
Issue number6
DOIs
Publication statusPublished - 2009

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    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, H. C., Lissauer, J. J., Marshall, S. L., ... Wen, C. Y. (2009). Upper limits on the number of small bodies in Sedna-like orbits by the TAOS project. Astronomical Journal, 138(6), 1893-1901. https://doi.org/10.1088/0004-6256/138/6/1893