Planetary transit candidates in the CSTAR field: Analysis of the 2008 data

Songhu Wang; Hui Zhang; Ji Lin Zhou; Xu Zhou; Ming Yang; Lifan Wang; D. Bayliss; G. Zhou; M. C.B. Ashley; Zhou Fan; Long Long Feng; Xuefei Gong; J. S. Lawrence; Huigen Liu; Qiang Liu; D. M. Luong-Van; Jun Ma; Zeyang Meng; J. W.V. Storey; R. A. Wittenmyer; Zhenyu Wu; Jun Yan; Huigen Yang; Ji Yang; Jiayi Yang; Xiangyan Yuan; Tianmeng Zhang; Zhenxi Zhu; Hu Zou

doi:10.1088/0067-0049/211/2/26

Planetary transit candidates in the CSTAR field: Analysis of the 2008 data

Songhu Wang, Hui Zhang, Ji Lin Zhou, Xu Zhou, Ming Yang, Lifan Wang, D. Bayliss, G. Zhou, M. C.B. Ashley, Zhou Fan, Long Long Feng, Xuefei Gong, J. S. Lawrence, Huigen Liu, Qiang Liu, D. M. Luong-Van, Jun Ma, Zeyang Meng, J. W.V. Storey, R. A. WittenmyerZhenyu Wu, Jun Yan, Huigen Yang, Ji Yang, Jiayi Yang, Xiangyan Yuan, Tianmeng Zhang, Zhenxi Zhu, Hu Zou

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

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Abstract

The Chinese Small Telescope ARray (CSTAR) is a group of four identical, fully automated, static 14.5 cm telescopes. CSTAR is located at Dome A, Antarctica and covers 20 deg² of sky around the South Celestial Pole. The installation is designed to provide high-cadence photometry for the purpose of monitoring the quality of the astronomical observing conditions at Dome A and detecting transiting exoplanets. CSTAR has been operational since 2008, and has taken a rich and high-precision photometric data set of 10,690 stars. In the first observing season, we obtained 291,911 qualified science frames with 20 s integrations in the i band. Photometric precision reaches 4 mmag at 20 s cadence at i = 7.5 and is 20 mmag at i = 12. Using robust detection methods, 10 promising exoplanet candidates were found. Four of these were found to be giants using spectroscopic follow-up. All of these transit candidates are presented here along with the discussion of their detailed properties as well as the follow-up observations.

Original language	English
Article number	26
Journal	Astrophysical Journal, Supplement Series
Volume	211
Issue number	2
DOIs	https://doi.org/10.1088/0067-0049/211/2/26
Publication status	Published - Apr 2014

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Wang, S., Zhang, H., Zhou, J. L., Zhou, X., Yang, M., Wang, L., Bayliss, D., Zhou, G., Ashley, M. C. B., Fan, Z., Feng, L. L., Gong, X., Lawrence, J. S., Liu, H., Liu, Q., Luong-Van, D. M., Ma, J., Meng, Z., Storey, J. W. V., ... Zou, H. (2014). Planetary transit candidates in the CSTAR field: Analysis of the 2008 data. Astrophysical Journal, Supplement Series, 211(2), Article 26. https://doi.org/10.1088/0067-0049/211/2/26

@article{cc336784aee94e72a011e22783659b6b,

title = "Planetary transit candidates in the CSTAR field: Analysis of the 2008 data",

abstract = "The Chinese Small Telescope ARray (CSTAR) is a group of four identical, fully automated, static 14.5 cm telescopes. CSTAR is located at Dome A, Antarctica and covers 20 deg2 of sky around the South Celestial Pole. The installation is designed to provide high-cadence photometry for the purpose of monitoring the quality of the astronomical observing conditions at Dome A and detecting transiting exoplanets. CSTAR has been operational since 2008, and has taken a rich and high-precision photometric data set of 10,690 stars. In the first observing season, we obtained 291,911 qualified science frames with 20 s integrations in the i band. Photometric precision reaches 4 mmag at 20 s cadence at i = 7.5 and is 20 mmag at i = 12. Using robust detection methods, 10 promising exoplanet candidates were found. Four of these were found to be giants using spectroscopic follow-up. All of these transit candidates are presented here along with the discussion of their detailed properties as well as the follow-up observations.",

keywords = "methods: data analysis, planetary systems, surveys, techniques: photometric",

author = "Songhu Wang and Hui Zhang and Zhou, {Ji Lin} and Xu Zhou and Ming Yang and Lifan Wang and D. Bayliss and G. Zhou and Ashley, {M. C.B.} and Zhou Fan and Feng, {Long Long} and Xuefei Gong and Lawrence, {J. S.} and Huigen Liu and Qiang Liu and Luong-Van, {D. M.} and Jun Ma and Zeyang Meng and Storey, {J. W.V.} and Wittenmyer, {R. A.} and Zhenyu Wu and Jun Yan and Huigen Yang and Ji Yang and Jiayi Yang and Xiangyan Yuan and Tianmeng Zhang and Zhenxi Zhu and Hu Zou",

year = "2014",

month = apr,

doi = "10.1088/0067-0049/211/2/26",

language = "English",

volume = "211",

journal = "Astrophysical Journal, Supplement Series",

issn = "0067-0049",

publisher = "American Astronomical Society",

number = "2",

}

Wang, S, Zhang, H, Zhou, JL, Zhou, X, Yang, M, Wang, L, Bayliss, D, Zhou, G, Ashley, MCB, Fan, Z, Feng, LL, Gong, X, Lawrence, JS, Liu, H, Liu, Q, Luong-Van, DM, Ma, J, Meng, Z, Storey, JWV, Wittenmyer, RA, Wu, Z, Yan, J, Yang, H, Yang, J, Yang, J, Yuan, X, Zhang, T, Zhu, Z & Zou, H 2014, 'Planetary transit candidates in the CSTAR field: Analysis of the 2008 data', Astrophysical Journal, Supplement Series, vol. 211, no. 2, 26. https://doi.org/10.1088/0067-0049/211/2/26

TY - JOUR

T1 - Planetary transit candidates in the CSTAR field

T2 - Analysis of the 2008 data

AU - Wang, Songhu

AU - Zhang, Hui

AU - Zhou, Ji Lin

AU - Zhou, Xu

AU - Yang, Ming

AU - Wang, Lifan

AU - Bayliss, D.

AU - Zhou, G.

AU - Ashley, M. C.B.

AU - Fan, Zhou

AU - Feng, Long Long

AU - Gong, Xuefei

AU - Lawrence, J. S.

AU - Liu, Huigen

AU - Liu, Qiang

AU - Luong-Van, D. M.

AU - Ma, Jun

AU - Meng, Zeyang

AU - Storey, J. W.V.

AU - Wittenmyer, R. A.

AU - Wu, Zhenyu

AU - Yan, Jun

AU - Yang, Huigen

AU - Yang, Ji

AU - Yang, Jiayi

AU - Yuan, Xiangyan

AU - Zhang, Tianmeng

AU - Zhu, Zhenxi

AU - Zou, Hu

PY - 2014/4

Y1 - 2014/4

N2 - The Chinese Small Telescope ARray (CSTAR) is a group of four identical, fully automated, static 14.5 cm telescopes. CSTAR is located at Dome A, Antarctica and covers 20 deg2 of sky around the South Celestial Pole. The installation is designed to provide high-cadence photometry for the purpose of monitoring the quality of the astronomical observing conditions at Dome A and detecting transiting exoplanets. CSTAR has been operational since 2008, and has taken a rich and high-precision photometric data set of 10,690 stars. In the first observing season, we obtained 291,911 qualified science frames with 20 s integrations in the i band. Photometric precision reaches 4 mmag at 20 s cadence at i = 7.5 and is 20 mmag at i = 12. Using robust detection methods, 10 promising exoplanet candidates were found. Four of these were found to be giants using spectroscopic follow-up. All of these transit candidates are presented here along with the discussion of their detailed properties as well as the follow-up observations.

AB - The Chinese Small Telescope ARray (CSTAR) is a group of four identical, fully automated, static 14.5 cm telescopes. CSTAR is located at Dome A, Antarctica and covers 20 deg2 of sky around the South Celestial Pole. The installation is designed to provide high-cadence photometry for the purpose of monitoring the quality of the astronomical observing conditions at Dome A and detecting transiting exoplanets. CSTAR has been operational since 2008, and has taken a rich and high-precision photometric data set of 10,690 stars. In the first observing season, we obtained 291,911 qualified science frames with 20 s integrations in the i band. Photometric precision reaches 4 mmag at 20 s cadence at i = 7.5 and is 20 mmag at i = 12. Using robust detection methods, 10 promising exoplanet candidates were found. Four of these were found to be giants using spectroscopic follow-up. All of these transit candidates are presented here along with the discussion of their detailed properties as well as the follow-up observations.

KW - methods: data analysis

KW - planetary systems

KW - surveys

KW - techniques: photometric

UR - http://www.scopus.com/inward/record.url?scp=84897979295&partnerID=8YFLogxK

U2 - 10.1088/0067-0049/211/2/26

DO - 10.1088/0067-0049/211/2/26

M3 - Article

SN - 0067-0049

VL - 211

JO - Astrophysical Journal, Supplement Series

JF - Astrophysical Journal, Supplement Series

IS - 2

M1 - 26

ER -

Planetary transit candidates in the CSTAR field: Analysis of the 2008 data

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