@misc{liu2017searching,
  abstract = {Proxima~Centauri is known as the closest star from the Sun. Recently, radial
velocity observations revealed the existence of an Earth--mass planet around
it. With an orbital period of $\sim$11 days, the surface of Proxima Centauri b
is temperate and might be habitable. We took a photometric monitoring campaign
to search for its transit, using the Bright Star Survey Telescope at the
Zhongshan Station in Antarctica. A transit--like signal appearing on September
8th, 2016, is identified tentatively. Its midtime,
$T_{C}=2,457,640.1990\pm0.0017$~HJD, is consistent with the predicted ephemeris
based on RV orbit in a 1$\sigma$ confidence interval. Time--correlated noise is
pronounced in the light curve of Proxima Centauri, affecting detection of
transits. We develop a technique, in a Gaussian process framework, to gauge the
statistical significance of potential transit detection. The tentative transit
signal reported here, has a confidence level of $2.5\sigma$. Further detection
of its periodic signals is necessary to confirm the planetary transit of
Proxima Centauri b. We plan to monitor Proxima Centauri in next Polar night at
Dome A in Antarctica, taking the advantage of continuous darkness.
\citet{Kipping17} reported two tentative transit--like signals of Proxima
Centauri b, observed by the Microvariability and Oscillation of Stars space
Telescope in 2014 and 2015, respectively. The midtransit time of our detection
is 138 minutes later than that predicted by their transit ephemeris. If all the
signals are real transits, the misalignment of the epochs plausibly suggests
transit timing variations of Proxima Centauri b induced by an outer planet in
this system.},
  added-at = {2017-11-21T22:19:38.000+0100},
  author = {Liu, Hui-Gen and Jiang, Peng and Huang, Xingxing and Yu, Zhou-Yi and Yang, Ming and Jia, Minghao and Awiphan, Supachai and Pan, Xiang and Liu, Bo and Zhang, Hongfei and Wang, Jian and Li, Zhengyang and Du, Fujia and Li, Xiaoyan and Lu, Haiping and Zhang, Zhiyong and Tian, Qi-Guo and Li, Bin and Ji, Tuo and Zhang, Shaohua and Shi, Xiheng and Wang, Ji and Zhou, Ji-Lin and Zhou, Hongyan},
  biburl = {https://www.bibsonomy.org/bibtex/28e67669d4b660c8f5b7fbcb1aa6f739b/superjenwinters},
  description = {Searching for the Transit of the Earth--mass exoplanet
  Proxima~Centauri~b in Antarctica: Preliminary Result},
  interhash = {6a24a3e26efa2675eeea8085cf272310},
  intrahash = {8e67669d4b660c8f5b7fbcb1aa6f739b},
  keywords = {mdwarf nearby exoplanet},
  note = {cite arxiv:1711.07018Comment: 17 pages, 8 figures, 2 tables, accepted by The Astronomical Journal},
  timestamp = {2017-11-21T22:19:38.000+0100},
  title = {Searching for the Transit of the Earth--mass exoplanet
  Proxima~Centauri~b in Antarctica: Preliminary Result},
  url = {http://arxiv.org/abs/1711.07018},
  year = 2017
}

{"_id":"HTYGyX9deGbbYnZHm","bibbaseid":"liu-jiang-huang-yu-yang-jia-awiphan-pan-etal-searchingforthetransitoftheearthmassexoplanetproximacentauribinantarcticapreliminaryresult-2017","author_short":["Liu, H.","Jiang, P.","Huang, X.","Yu, Z.","Yang, M.","Jia, M.","Awiphan, S.","Pan, X.","Liu, B.","Zhang, H.","Wang, J.","Li, Z.","Du, F.","Li, X.","Lu, H.","Zhang, Z.","Tian, Q.","Li, B.","Ji, T.","Zhang, S.","Shi, X.","Wang, J.","Zhou, J.","Zhou, H."],"bibdata":{"bibtype":"misc","type":"misc","abstract":"Proxima~Centauri is known as the closest star from the Sun. Recently, radial velocity observations revealed the existence of an Earth–mass planet around it. With an orbital period of $\\sim$11 days, the surface of Proxima Centauri b is temperate and might be habitable. We took a photometric monitoring campaign to search for its transit, using the Bright Star Survey Telescope at the Zhongshan Station in Antarctica. A transit–like signal appearing on September 8th, 2016, is identified tentatively. Its midtime, $T_{C}=2,457,640.1990\\pm0.0017$~HJD, is consistent with the predicted ephemeris based on RV orbit in a 1$\\sigma$ confidence interval. Time–correlated noise is pronounced in the light curve of Proxima Centauri, affecting detection of transits. We develop a technique, in a Gaussian process framework, to gauge the statistical significance of potential transit detection. The tentative transit signal reported here, has a confidence level of $2.5\\sigma$. Further detection of its periodic signals is necessary to confirm the planetary transit of Proxima Centauri b. We plan to monitor Proxima Centauri in next Polar night at Dome A in Antarctica, taking the advantage of continuous darkness. i̧tetKipping17 reported two tentative transit–like signals of Proxima Centauri b, observed by the Microvariability and Oscillation of Stars space Telescope in 2014 and 2015, respectively. The midtransit time of our detection is 138 minutes later than that predicted by their transit ephemeris. If all the signals are real transits, the misalignment of the epochs plausibly suggests transit timing variations of Proxima Centauri b induced by an outer planet in this system.","added-at":"2017-11-21T22:19:38.000+0100","author":[{"propositions":[],"lastnames":["Liu"],"firstnames":["Hui-Gen"],"suffixes":[]},{"propositions":[],"lastnames":["Jiang"],"firstnames":["Peng"],"suffixes":[]},{"propositions":[],"lastnames":["Huang"],"firstnames":["Xingxing"],"suffixes":[]},{"propositions":[],"lastnames":["Yu"],"firstnames":["Zhou-Yi"],"suffixes":[]},{"propositions":[],"lastnames":["Yang"],"firstnames":["Ming"],"suffixes":[]},{"propositions":[],"lastnames":["Jia"],"firstnames":["Minghao"],"suffixes":[]},{"propositions":[],"lastnames":["Awiphan"],"firstnames":["Supachai"],"suffixes":[]},{"propositions":[],"lastnames":["Pan"],"firstnames":["Xiang"],"suffixes":[]},{"propositions":[],"lastnames":["Liu"],"firstnames":["Bo"],"suffixes":[]},{"propositions":[],"lastnames":["Zhang"],"firstnames":["Hongfei"],"suffixes":[]},{"propositions":[],"lastnames":["Wang"],"firstnames":["Jian"],"suffixes":[]},{"propositions":[],"lastnames":["Li"],"firstnames":["Zhengyang"],"suffixes":[]},{"propositions":[],"lastnames":["Du"],"firstnames":["Fujia"],"suffixes":[]},{"propositions":[],"lastnames":["Li"],"firstnames":["Xiaoyan"],"suffixes":[]},{"propositions":[],"lastnames":["Lu"],"firstnames":["Haiping"],"suffixes":[]},{"propositions":[],"lastnames":["Zhang"],"firstnames":["Zhiyong"],"suffixes":[]},{"propositions":[],"lastnames":["Tian"],"firstnames":["Qi-Guo"],"suffixes":[]},{"propositions":[],"lastnames":["Li"],"firstnames":["Bin"],"suffixes":[]},{"propositions":[],"lastnames":["Ji"],"firstnames":["Tuo"],"suffixes":[]},{"propositions":[],"lastnames":["Zhang"],"firstnames":["Shaohua"],"suffixes":[]},{"propositions":[],"lastnames":["Shi"],"firstnames":["Xiheng"],"suffixes":[]},{"propositions":[],"lastnames":["Wang"],"firstnames":["Ji"],"suffixes":[]},{"propositions":[],"lastnames":["Zhou"],"firstnames":["Ji-Lin"],"suffixes":[]},{"propositions":[],"lastnames":["Zhou"],"firstnames":["Hongyan"],"suffixes":[]}],"biburl":"https://www.bibsonomy.org/bibtex/28e67669d4b660c8f5b7fbcb1aa6f739b/superjenwinters","description":"Searching for the Transit of the Earth–mass exoplanet Proxima~Centauri~b in Antarctica: Preliminary Result","interhash":"6a24a3e26efa2675eeea8085cf272310","intrahash":"8e67669d4b660c8f5b7fbcb1aa6f739b","keywords":"mdwarf nearby exoplanet","note":"cite arxiv:1711.07018Comment: 17 pages, 8 figures, 2 tables, accepted by The Astronomical Journal","timestamp":"2017-11-21T22:19:38.000+0100","title":"Searching for the Transit of the Earth–mass exoplanet Proxima~Centauri~b in Antarctica: Preliminary Result","url":"http://arxiv.org/abs/1711.07018","year":"2017","bibtex":"@misc{liu2017searching,\n abstract = {Proxima~Centauri is known as the closest star from the Sun. Recently, radial\r\nvelocity observations revealed the existence of an Earth--mass planet around\r\nit. With an orbital period of $\\sim$11 days, the surface of Proxima Centauri b\r\nis temperate and might be habitable. We took a photometric monitoring campaign\r\nto search for its transit, using the Bright Star Survey Telescope at the\r\nZhongshan Station in Antarctica. A transit--like signal appearing on September\r\n8th, 2016, is identified tentatively. Its midtime,\r\n$T_{C}=2,457,640.1990\\pm0.0017$~HJD, is consistent with the predicted ephemeris\r\nbased on RV orbit in a 1$\\sigma$ confidence interval. Time--correlated noise is\r\npronounced in the light curve of Proxima Centauri, affecting detection of\r\ntransits. We develop a technique, in a Gaussian process framework, to gauge the\r\nstatistical significance of potential transit detection. The tentative transit\r\nsignal reported here, has a confidence level of $2.5\\sigma$. Further detection\r\nof its periodic signals is necessary to confirm the planetary transit of\r\nProxima Centauri b. We plan to monitor Proxima Centauri in next Polar night at\r\nDome A in Antarctica, taking the advantage of continuous darkness.\r\n\\citet{Kipping17} reported two tentative transit--like signals of Proxima\r\nCentauri b, observed by the Microvariability and Oscillation of Stars space\r\nTelescope in 2014 and 2015, respectively. The midtransit time of our detection\r\nis 138 minutes later than that predicted by their transit ephemeris. If all the\r\nsignals are real transits, the misalignment of the epochs plausibly suggests\r\ntransit timing variations of Proxima Centauri b induced by an outer planet in\r\nthis system.},\n added-at = {2017-11-21T22:19:38.000+0100},\n author = {Liu, Hui-Gen and Jiang, Peng and Huang, Xingxing and Yu, Zhou-Yi and Yang, Ming and Jia, Minghao and Awiphan, Supachai and Pan, Xiang and Liu, Bo and Zhang, Hongfei and Wang, Jian and Li, Zhengyang and Du, Fujia and Li, Xiaoyan and Lu, Haiping and Zhang, Zhiyong and Tian, Qi-Guo and Li, Bin and Ji, Tuo and Zhang, Shaohua and Shi, Xiheng and Wang, Ji and Zhou, Ji-Lin and Zhou, Hongyan},\n biburl = {https://www.bibsonomy.org/bibtex/28e67669d4b660c8f5b7fbcb1aa6f739b/superjenwinters},\n description = {Searching for the Transit of the Earth--mass exoplanet\r\n Proxima~Centauri~b in Antarctica: Preliminary Result},\n interhash = {6a24a3e26efa2675eeea8085cf272310},\n intrahash = {8e67669d4b660c8f5b7fbcb1aa6f739b},\n keywords = {mdwarf nearby exoplanet},\n note = {cite arxiv:1711.07018Comment: 17 pages, 8 figures, 2 tables, accepted by The Astronomical Journal},\n timestamp = {2017-11-21T22:19:38.000+0100},\n title = {Searching for the Transit of the Earth--mass exoplanet\r\n Proxima~Centauri~b in Antarctica: Preliminary Result},\n url = {http://arxiv.org/abs/1711.07018},\n year = 2017\n}\n\n","author_short":["Liu, H.","Jiang, P.","Huang, X.","Yu, Z.","Yang, M.","Jia, M.","Awiphan, S.","Pan, X.","Liu, B.","Zhang, H.","Wang, J.","Li, Z.","Du, F.","Li, X.","Lu, H.","Zhang, Z.","Tian, Q.","Li, B.","Ji, T.","Zhang, S.","Shi, X.","Wang, J.","Zhou, J.","Zhou, H."],"key":"liu2017searching","id":"liu2017searching","bibbaseid":"liu-jiang-huang-yu-yang-jia-awiphan-pan-etal-searchingforthetransitoftheearthmassexoplanetproximacentauribinantarcticapreliminaryresult-2017","role":"author","urls":{"Paper":"http://arxiv.org/abs/1711.07018"},"keyword":["mdwarf nearby exoplanet"],"metadata":{"authorlinks":{}}},"bibtype":"misc","biburl":"http://www.bibsonomy.org/bib/author/Haiping Lu,?items=1000","dataSources":["myq7WPbwsKqEpAYz6"],"keywords":["mdwarf nearby exoplanet"],"search_terms":["searching","transit","earth","mass","exoplanet","proxima","centauri","antarctica","preliminary","result","liu","jiang","huang","yu","yang","jia","awiphan","pan","liu","zhang","wang","li","du","li","lu","zhang","tian","li","ji","zhang","shi","wang","zhou","zhou"],"title":"Searching for the Transit of the Earth–mass exoplanet Proxima~Centauri~b in Antarctica: Preliminary Result","year":2017}