Fast CCD photometry in the Taiwan-America occultation survey

W. P. Chen, Z. W. Zhang, S. K. King, C. Alcock, Y. I. Byun, K. H. Cook, R. Dave, J. Giammarco, T. Lee, M. Lehner, C. Liang, J. Lissauer, S. Marshall, I. De Pater, R. Porrata, J. Rice, A. Wang, S. Y. Wang, C. Y. Wen

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Abstract

We describe the efforts of the Taiwan-America Occupation Survey (TAOS) project to develop a data acquisition and analysis scheme for fast CCD imaging photometry. The TAOS project aims to conduct a census of the Kuiper-belt objects (KBOs) by detecting chance stellar occultation events by these small bodies in the outer reach of the solar system. An array of telescopes, each with fast optics (f/2) of 0.5 m aperture and equipped with a 2K CCD camera (3 square degrees FOV), have been set up in central Taiwan to monitor a couple thousand stars simultaneously. By reading out the CCD chip sequentially a few rows of pixels at a time (pause-and-shift), it is possible to achieve stellar photometry with a sampling rate up to several hertz. Here we report how such a setup has been used to observe the SX Phoenicis type variable CY Aqr to illustrate the potential usefulness of the TAOS database in stellar variability studies.

Original languageEnglish
Pages (from-to)568-573
Number of pages6
JournalBaltic Astronomy
Volume12
Issue number4
Publication statusPublished - 2003 Dec 1

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All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Chen, W. P., Zhang, Z. W., King, S. K., Alcock, C., Byun, Y. I., Cook, K. H., Dave, R., Giammarco, J., Lee, T., Lehner, M., Liang, C., Lissauer, J., Marshall, S., De Pater, I., Porrata, R., Rice, J., Wang, A., Wang, S. Y., & Wen, C. Y. (2003). Fast CCD photometry in the Taiwan-America occultation survey. Baltic Astronomy, 12(4), 568-573.