Dome A on the Antarctic plateau is likely one of the best observing sites on Earth (Saunders et al. 2009). We used the CSTAR telescope (Yuan et al. 2008) to obtain time-series photometry of 104 stars with i>14.5 mag during 128 days of the 2008 Antarctic winter season (Wang et al. 2011). During the 2010 season we observed 2 × 104 stars with i>15 mag for 183 days (Wang et al. 2012). We detected a total of 262 variables, a 6 × increase relative to previous surveys of the same area and depth carried out from temperate sites (Pojmanski 2004). Our observations show that high-precision, long-term photometry is possible from Antarctica and that astronomically useful data can be obtained during 80% of the winter season.
|Number of pages||2|
|Journal||Proceedings of the International Astronomical Union|
|Publication status||Published - Aug 2012|
|Event||International Astronomical Union Symposium (288th : 2012): Astrophysics from Antarctica - Beijing, China|
Duration: 20 Aug 2012 → 24 Aug 2012
Conference number: 288