TY - JOUR
T1 - Photometry of variable stars from dome a, antarctica
T2 - Results from the 2010 observing season
AU - Wang, Lingzhi
AU - Macri, Lucas M.
AU - Wang, Lifan
AU - Ashley, Michael C.B.
AU - Cui, Xiangqun
AU - Feng, Long Long
AU - Gong, Xuefei
AU - Lawrence, Jon S.
AU - Liu, Qiang
AU - Luong-Van, Daniel
AU - Pennypacker, Carl R.
AU - Shang, Zhaohui
AU - Storey, John W.V.
AU - Yang, Huigen
AU - Yang, Ji
AU - Yuan, Xiangyan
AU - York, Donald G.
AU - Zhou, Xu
AU - Zhu, Zhenxi
AU - Zhu, Zonghong
PY - 2013/12
Y1 - 2013/12
N2 - We present results from a season of observations with the Chinese Small Telescope ARray, obtained over 183 days of the 2010 Antarctic winter. We carried out high-cadence time-series aperture photometry of 9125 stars with i ≲ 15.3 mag located in a 23 deg2 region centered on the south celestial pole. We identified 188 variable stars, including 67 new objects relative to our 2008 observations, thanks to broader synoptic coverage, a deeper magnitude limit, and a larger field of view. We used the photometric data set to derive site statistics from Dome A. Based on two years of observations, we find that extinction due to clouds at this site is less than 0.1 and 0.4 mag during 45% and 75% of the dark time, respectively.
AB - We present results from a season of observations with the Chinese Small Telescope ARray, obtained over 183 days of the 2010 Antarctic winter. We carried out high-cadence time-series aperture photometry of 9125 stars with i ≲ 15.3 mag located in a 23 deg2 region centered on the south celestial pole. We identified 188 variable stars, including 67 new objects relative to our 2008 observations, thanks to broader synoptic coverage, a deeper magnitude limit, and a larger field of view. We used the photometric data set to derive site statistics from Dome A. Based on two years of observations, we find that extinction due to clouds at this site is less than 0.1 and 0.4 mag during 45% and 75% of the dark time, respectively.
KW - site testing
KW - stars: variables: general
UR - http://www.scopus.com/inward/record.url?scp=84889072176&partnerID=8YFLogxK
U2 - 10.1088/0004-6256/146/6/139
DO - 10.1088/0004-6256/146/6/139
M3 - Article
AN - SCOPUS:84889072176
VL - 146
SP - 1
EP - 10
JO - Astronomical Journal
JF - Astronomical Journal
SN - 0004-6256
IS - 6
M1 - 139
ER -