Photometry of variables from dome A, Antarctica

Lingzhi Wang, L. M. MacRi, L. Wang, M. C B Ashley, X. Cui, L. L. Feng, X. Gong, J. S. Lawrence, Q. Liu, D. Luong-Van, C. R. Pennypacker, Z. Shang, J. W V Storey, H. Yang, J. Yang, X. Yuan, D. G. York, X. Zhou, Z. Zhu, Z. Zhu

Research output: Contribution to journalConference paperpeer-review

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 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.

Original languageEnglish
Pages (from-to)320-321
Number of pages2
JournalProceedings of the International Astronomical Union
Volume8
Issue numberS288
DOIs
Publication statusPublished - Aug 2012
Externally publishedYes
EventInternational Astronomical Union Symposium (288th : 2012): Astrophysics from Antarctica - Beijing, China
Duration: 20 Aug 201224 Aug 2012
Conference number: 288

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