The taiwanese-american occultation survey project stellar variability. II. Detection of 15 variable stars

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

研究成果: 雜誌貢獻期刊論文同行評審

9 引文 斯高帕斯(Scopus)

摘要

The Taiwanese-American Occultation Survey (TAOS) project has collected more than a billion photometric measurements since 2005 January. These sky survey data - covering timescales from a fraction of a second to a few hundred days - are a useful source to study stellar variability. A total of 167 star fields, mostly along the ecliptic plane, have been selected for photometric monitoring with the TAOS telescopes. This paper presents our initial analysis of a search for periodic variable stars from the time-series TAOS data on one particular TAOS field, No.151 (R.A. = 17h30m67, decl. = 27°17′30″, J2000), which had been observed over 47 epochs in 2005. A total of 81 candidate variables are identified in the 3 deg2 field, with magnitudes in the range 8 < R < 16. On the basis of the periodicity and shape of the light curves, 29 variables, 15 of which were previously unknown, are classified as RR Lyrae, Cepheid, δ Scuti, SX Phonencis, semi-regular, and eclipsing binaries.

原文???core.languages.en_GB???
頁(從 - 到)2026-2033
頁數8
期刊Astronomical Journal
139
發行號5
DOIs
出版狀態已出版 - 2010

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