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Recent site testing (see: http://www-luan.unice.fr/Concordiastro/indexantartic.html) has shown that Dome C in Antarctica might have a high potential for stellar interferometry if some solutions related to the surface atmospheric layer are…

Astrophysics · Physics 2009-11-11 B. Valat , F. X. Schmider , B. Lopez , R. Petrov , M. Vannier , F. Millour , F. Vakili

The Chinese Small Telescope ARray (CSTAR) has observed an area around the Celestial South Pole at Dome A since 2008. About $20,000$ light curves in the i band were obtained lasting from March to July, 2008. The photometric precision…

The Canadian MOST satellite is a unique platform for observations of bright transiting exoplanetary systems. Providing nearly continuous photometric observations for up to 8 weeks, MOST can produce important observational data to help us…

We present updated transit timing measurements for the hot Jupiter WASP-135 b using three new ground-based transit observations obtained with Leia, a 0.6-meter telescope operated by NASA's Exoplanet Watch at the Table Mountain Facility.…

SPECULOOS is a ground-based transit survey consisting of six identical 1-m robotic telescopes. The immediate goal of the project is to detect temperate terrestrial planets transiting nearby ultracool dwarfs (late M-dwarf stars and brown…

We report on the measurement of transit times for the HD 209458 planetary system from photometry obtained with the MOST (Microvariability & Oscillations of STars) space telescope. Deviations from a constant orbital period can indicate the…

Beating the Earth's day-night cycle is mandatory for long and continuous time-series photometry and had been achieved with either large ground-based networks of observatories at different geographic longitudes or when conducted from space.…

The transiting long-period exoplanets are the most interesting follow-up targets for the next-generation instruments, using the most sophisticated observational techniques. However, the scarcity in their transit events often leads to larger…

Earth and Planetary Astrophysics · Physics 2025-04-03 Suman Saha

Temporal fluctuations of the atmospheric piston are critical for interferometers as they determine their sensitivity. We characterize an instrumental set-up, termed the piston scope, that aims at measuring the atmospheric time constant,…

Astrophysics · Physics 2009-11-13 A. Kellerer , M. Sarazin , T. Butterley , R. Wilson

Surveys provide a wealth of data to the astronomical community that are used well after their completion. In this paper, we propose a project that would take the maximum benefit of Dome C in Antarctica by performing two surveys, in the…

Astrophysics · Physics 2009-11-11 D. Burgarella , M. Ferrari , T. Fusco , M. Langlois , B. Leroux , G. Moretto , M. Nicole

The NASA Transiting Exoplanet Survey Satellite (TESS) is observing tens of millions of stars with time spans ranging from $\sim$ 27 days to about 1 year of continuous observations. This vast amount of data contains a wealth of information…

We present precision transit observations of the Neptune-sized planets K2-28b and K2-100b, using the Engineered Diffuser on the ARCTIC imager on the ARC 3.5m Telescope at Apache Point Observatory. K2-28b is a $R_{p} = 2.56 R_\oplus$…

Earth and Planetary Astrophysics · Physics 2018-11-28 Gudmundur Stefansson , Yiting Li , Suvrath Mahadevan , John Wisniewski , Leslie Hebb , Brett Morris , Joseph Huehnerhoff , Suzanne Hawley

The reanalysis datasets provide very important sources for investigating the climate dynamics and climate changes in Antarctica. In this paper, three major reanalysis data are compared with Antarctic station data over the last 35 years: the…

Atmospheric and Oceanic Physics · Physics 2017-01-11 Yang Wang , Dong Zhou , Armin Bunde , Shlomo Havlin

Dome A in the Antarctic plateau is likely one of the best astronomical observing sites on Earth. The first one of three Antarctic Survey Telescope (AST3-1), a 50/68 cm Schmidt-like equatorial-mount telescope, is the first trackable…

Solar and Stellar Astrophysics · Physics 2015-11-10 Gang Li , Jianning Fu , Xuanming Liu

Located within 10 degrees of the North Pole, northern Ellesmere Island offers continuous darkness in the winter months. This capability can greatly enhance the detection efficiency of planetary transit surveys and other time domain…

Ground-based observations around 1.4 $\mu$m are normally limited by strong absorption of telluric water-vapor. However, Dome A, Antarctica has exceptionally dry conditions that offer a unique opportunity for observations in this band. We…

Instrumentation and Methods for Astrophysics · Physics 2026-01-21 Pu Lin , Haonan Yang , Bin Ma , Jinji Li , Haoran Zhang , Michael C. B. Ashley , Zhong-Nan Dong , Lu Feng , Wei Huang , Yi Hu , Zhaohui Shang , Yun Shi , Shijie Sun , Xu Yang , Yong Zhang

MARST (Multi-channel Antarctic Solar Telescope) aims to observe the Sun in multiple wavebands in Antarctica and will be China's first solar telescope in Antarctica. The telescope has two tubes, corresponding to Photosphere observation which…

Instrumentation and Methods for Astrophysics · Physics 2018-07-05 Ya-qi Chen , Ming-hao Jia , Guang-yu Zhang , Zhi-yue Wang , Yi-ling Xu , Yi Feng , Jie Chen , Hong-fei Zhang , Peng Jiang , Tuo Ji , Jian Wang

The Transit Ephemeris Refinement and Monitoring Survey (TERMS) conducts radial velocity and photometric monitoring of known exoplanets in order to refine planetary orbits and predictions of possible transit times. This effort is primarily…

Intelligent scheduling of the sequence of scientific exposures taken at ground-based astronomical observatories is massively challenging. Observing time is over-subscribed and atmospheric conditions are constantly changing. We propose to…

Instrumentation and Methods for Astrophysics · Physics 2020-11-09 Sankalp Gilda , Yuan-Sen Ting , Kanoa Withington , Matthew Wilson , Simon Prunet , William Mahoney , Sebastien Fabbro , Stark C. Draper , Andrew Sheinis