Photometry of variable stars from Dome A, Antarctica

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

doi:10.1088/0004-6256/142/5/155

Photometry of variable stars from Dome A, Antarctica

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 ZhuZonghong Zhu

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

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 similarmagnitude limits. We detected 157 variable stars, of which 55% were unclassified, 27% were likely binaries, and 17% were likely pulsating stars. The latter category includes δ Scuti, γ Doradus, and RR Lyrae variables. One variable may be a transiting exoplanet.

Original language	English
Article number	155
Pages (from-to)	1-13
Number of pages	13
Journal	Astronomical Journal
Volume	142
Issue number	5
DOIs	https://doi.org/10.1088/0004-6256/142/5/155
Publication status	Published - Nov 2011
Externally published	Yes

Keywords

site testing
stars: variables: general

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Wang, L., MacRi, L. M., Krisciunas, K., Wang, L., Ashley, M. C. B., Cui, X., Feng, L. L., Gong, X., Lawrence, J. S., Liu, Q., Luong-Van, D., Pennypacker, C. R., Shang, Z., Storey, J. W. V., Yang, H., Yang, J., Yuan, X., York, D. G., Zhou, X., ... Zhu, Z. (2011). Photometry of variable stars from Dome A, Antarctica. Astronomical Journal, 142(5), 1-13. Article 155. https://doi.org/10.1088/0004-6256/142/5/155

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title = "Photometry of variable stars from Dome A, Antarctica",

abstract = "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 similarmagnitude limits. We detected 157 variable stars, of which 55% were unclassified, 27% were likely binaries, and 17% were likely pulsating stars. The latter category includes δ Scuti, γ Doradus, and RR Lyrae variables. One variable may be a transiting exoplanet.",

keywords = "site testing, stars: variables: general",

author = "Lingzhi Wang and MacRi, {Lucas M.} and Kevin Krisciunas and Lifan Wang and Ashley, {Michael C B} and Xiangqun Cui and Feng, {Long Long} and Xuefei Gong and Lawrence, {Jon S.} and Qiang Liu and Daniel Luong-Van and Pennypacker, {Carl R.} and Zhaohui Shang and Storey, {John W V} and Huigen Yang and Ji Yang and Xiangyan Yuan and York, {Donald G.} and Xu Zhou and Zhenxi Zhu and Zonghong Zhu",

year = "2011",

month = nov,

doi = "10.1088/0004-6256/142/5/155",

language = "English",

volume = "142",

pages = "1--13",

journal = "Astronomical Journal",

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publisher = "Institute of Physics",

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Wang, L, MacRi, LM, Krisciunas, K, Wang, L, Ashley, MCB, Cui, X, Feng, LL, Gong, X, Lawrence, JS, Liu, Q, Luong-Van, D, Pennypacker, CR, Shang, Z, Storey, JWV, Yang, H, Yang, J, Yuan, X, York, DG, Zhou, X, Zhu, Z & Zhu, Z 2011, 'Photometry of variable stars from Dome A, Antarctica', Astronomical Journal, vol. 142, no. 5, 155, pp. 1-13. https://doi.org/10.1088/0004-6256/142/5/155

TY - JOUR

T1 - Photometry of variable stars from Dome A, Antarctica

AU - Wang, Lingzhi

AU - MacRi, Lucas M.

AU - Krisciunas, Kevin

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 - 2011/11

Y1 - 2011/11

N2 - 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 similarmagnitude limits. We detected 157 variable stars, of which 55% were unclassified, 27% were likely binaries, and 17% were likely pulsating stars. The latter category includes δ Scuti, γ Doradus, and RR Lyrae variables. One variable may be a transiting exoplanet.

AB - 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 similarmagnitude limits. We detected 157 variable stars, of which 55% were unclassified, 27% were likely binaries, and 17% were likely pulsating stars. The latter category includes δ Scuti, γ Doradus, and RR Lyrae variables. One variable may be a transiting exoplanet.

KW - site testing

KW - stars: variables: general

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DO - 10.1088/0004-6256/142/5/155

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AN - SCOPUS:80054733916

SN - 0004-6256

VL - 142

SP - 1

EP - 13

JO - Astronomical Journal

JF - Astronomical Journal

IS - 5

M1 - 155

ER -

Photometry of variable stars from Dome A, Antarctica

Abstract

Keywords

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