The Taiwanese-American occultation survey project stellar variability. III. Detection of 58 new variable stars

R. Ishioka, S. Y. Wang, Z. W. Zhang, M. J. Lehner, C. Alcock, T. Axelrod, F. B. Bianco, Y. I. Byun, W. P. Chen, K. H. Cook, D. W. Kim, S. K. King, T. Lee, S. L. Marshall, P. Protopapas, J. A. Rice, M. E. Schwamb, J. H. Wang, C. Y. Wen, C. C. Ngeow

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Abstract

The Taiwanese-American Occultation Survey project is designed for the detection of stellar occultations by small-size Kuiper Belt Objects, and it has monitored selected fields along the ecliptic plane by using four telescopes with a 3 deg2 field of view on the sky since 2005. We have analyzed data accumulated during 2005-2012 to detect variable stars. Sixteen fields with observations of more than 100 epochs were examined. We recovered 85 variables among a total of 158 known variable stars in these 16 fields. Most of the unrecovered variables are located in the fields observed less frequently. We also detected 58 variable stars which are not listed in the International Variable Star Index of the American Association of Variable Star Observers. These variable stars are classified as 3 RR Lyrae, 4 Cepheid, 1 δ Scuti, 5 Mira, 15 semi-regular, and 27 eclipsing binaries based on the periodicity and the profile of the light curves.

Original languageEnglish
Article number70
JournalAstronomical Journal
Volume147
Issue number4
DOIs
Publication statusPublished - 2014 Apr

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All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Ishioka, R., Wang, S. Y., Zhang, Z. W., Lehner, M. J., Alcock, C., Axelrod, T., Bianco, F. B., Byun, Y. I., Chen, W. P., Cook, K. H., Kim, D. W., King, S. K., Lee, T., Marshall, S. L., Protopapas, P., Rice, J. A., Schwamb, M. E., Wang, J. H., Wen, C. Y., & Ngeow, C. C. (2014). The Taiwanese-American occultation survey project stellar variability. III. Detection of 58 new variable stars. Astronomical Journal, 147(4), [70]. https://doi.org/10.1088/0004-6256/147/4/70