Photometry of Variables from Dome A, Antarctica
Abstract 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 10 4 stars with i >14.5 mag during 128 days of the 2008 Antarctic winter season (Wang et al...
Published in: | Proceedings of the International Astronomical Union |
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Main Authors: | , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2012
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Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s1743921312017127 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1743921312017127 |
Summary: | Abstract 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 10 4 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 × 10 4 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. |
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