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Open Astronomy

formerly Baltic Astronomy

Editor-in-Chief: Barbuy, Beatriz


IMPACT FACTOR 2018: 0.350

CiteScore 2018: 0.24

SCImago Journal Rank (SJR) 2018: 0.202
Source Normalized Impact per Paper (SNIP) 2018: 0.144

ICV 2017: 121.03

Open Access
Online
ISSN
2543-6376
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Volume 12, Issue 4

Issues

Fast CCD Photometry in the Taiwan-America Occultation Survey

W. P. Chen
  • Corresponding author
  • Institute of Astronomy, National Central University, Chung-Li 32054, Taiwan, Province of China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Z. W. Zhang
  • Institute of Astronomy, National Central University, Chung-Li 32054, Taiwan, Province of China
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ S. K. King / C. Alcock / Y. I. Byun / K. H. Cook
  • Institute of Geophysics and Planetary Physics, Lawrence Livermore National Laboratory, United States of America
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ R. Dave / J. Giammarco / T. Lee / M. Lehner / C. Liang / J. Lissauer / S. Marshall
  • Institute of Geophysics and Planetary Physics, Lawrence Livermore National Laboratory, United States of America
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ I. de Pater / R. Porrata
  • Institute of Geophysics and Planetary Physics, Lawrence Livermore National Laboratory, United States of America
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ J. Rice / A. Wang / S. Y. Wang / C. Y. Wen
Published Online: 2017-02-08 | DOI: https://doi.org/10.1515/astro-2017-0082

Abstract

We describe the efforts of the Taiwan-America Occultation 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.

Keywords: solar system; Kuiper belt objects; methods; observational; techniques; photometric

References

About the article

Received: 2003-11-15

Published Online: 2017-02-08

Published in Print: 2003-12-01


Citation Information: Open Astronomy, Volume 12, Issue 4, Pages 568–573, ISSN (Online) 2543-6376, DOI: https://doi.org/10.1515/astro-2017-0082.

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© 2017. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. BY-NC-ND 4.0

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