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

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 deg{sup 2} 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.
Authors:
; ; ; ; ; ; ; ; ; ;  [1] ; ;  [2] ;  [3] ;  [4] ;  [5] ; ;  [6] ;  [7] ;  [8]
  1. Institute of Astronomy and Astrophysics, Academia Sinica, 11F of Astronomy-Mathematics Building, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan (China)
  2. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)
  3. Steward Observatory, 933 North Cherry Avenue, Room N204, Tucson, AZ 85721 (United States)
  4. Center for Cosmology and Particle Physics, New York University, 4 Washington Place, New York, NY 10003 (United States)
  5. Department of Astronomy and University Observatory, Yonsei University, 134 Shinchon, Seoul 120-749 (Korea, Republic of)
  6. Institute of Astronomy, National Central University, No. 300, Jhongda Road, Jhongli City, Taoyuan County 320, Taiwan (China)
  7. Max Planck Institute for Astronomy, Königstuhl 17, D-69117 Heidelberg (Germany)
  8. Department of Statistics, University of California Berkeley, 367 Evans Hall, Berkeley, CA 94720 (United States)
Publication Date:
OSTI Identifier:
22340326
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astronomical Journal (New York, N.Y. Online); Journal Volume: 147; Journal Issue: 4; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; CEPHEIDS; DETECTION; ECLIPSE; PERIODICITY; SKY; STAR EVOLUTION; STARS; TELESCOPES; VARIABLE STARS; VISIBLE RADIATION