doi:10.1088/0004-6256/142/5/155 PHOTOMETRY OF VARIABLE STARS FROM DOME A, ANTARCTICA

• Main Authors: Lingzhi Wang, Lucas M. Macri, Kevin Krisciunas, Lifan Wang, Michael C. B. Ashley, Xiangqun Cui, Long-long Feng, Xuefei Gong, Jon S. Lawrence, Qiang Liu, Daniel Luong-van, Carl R. Pennypacker, Zhaohui Shang, John W. V. Storey, Huigen Yang, Ji Yang, Xiangyan Yuan, Donald G. York, Xu Zhou, Zhenxi Zhu, Zonghong Zhu
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2011
• Subjects: Antarctic; The Antarctic; Antarc*; Antarctica
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.228.8237; http://www.phys.unsw.edu.au/%7Emcba/pubs/wan11a.pdf

Dome A on the Antarctic plateau is likely one of the best observing sites on Earth thanks to the excellent atmospheric conditions present at the site during the long polar winter night. We present high-cadence time-series aperture photometry of 10,000 stars with i<14.5 mag located in a 23 deg2 region centered on the south celestial pole. The photometry was obtained with one of the CSTAR telescopes during 128 days of the 2008 Antarctic winter. We used this photometric data set to derive site statistics for Dome A and to search for variable stars. Thanks to the nearly uninterrupted synoptic coverage, we found six times as many variables as previous surveys with similar magnitude