Site characteristics of the high Antarctic plateau

Ashley, M. C. B.

doi:10.1017/s1743921312016614

Cited by 3 publications

(2 citation statements)

References 32 publications

(29 reference statements)

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“…Extremely temperature ensures the water vapour content low and stable, thus reducing photometric noise caused by vapour absorption [13]. Atmospheric turbulence on the plateau also reduces the scintillation noise and improves photometric precision [14][15][16]. In addition, the Antarctic continent has the cleanest air on Earth, with the lowest atmospheric aerosol concentration and negligible artificial light pollution [17].…”

Section: Introductionmentioning

confidence: 99%

Antarctic Survey Telescope 3-3: Overview, System Performance and Preliminary Observations at Yaoan, Yunnan

Sun

et al. 2022

Universe

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The third Antarctic Survey Telescope array instrument at Dome A in Antarctica, the AST3-3 telescope, has been in commissioning from March 2021. We deployed AST3-3 at the Yaoan astronomical station in Yunnan Province for an automatic time-domain survey and follow-up observations with an optimised observation and protection system. The telescope system of AST3-3 is similar to that of AST3-1 and AST3-2, except that it is equipped with a 14 K × 10 K QHY411 CMOS camera. AST3-3 has a field of view of 1.65∘×1.23∘ and is currently using the g band filter. During commissioning at Yaoan, AST3-3 aims to conduct an extragalactic transient survey, coupled with prompt follow-ups of opportunity targets. In this paper, we present the architecture of the AST3-3 automatic observation system. We demonstrate the data processing of observations by representatives SN 2022eyw and GRB 210420B.

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Section: Introductionmentioning

confidence: 99%

Antarctic Survey Telescope 3-3: Overview, System Performance and Preliminary Observations at Yaoan, Yunnan

Sun

et al. 2022

Universe

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“…Due to a combination of high altitude, dry atmosphere, low temperature, and stable conditions, sites on the Antarctic plateau offer some of the best conditions on earth for infrared astronomy. 1 The astronomical K-dark band at 2.4 microns in particular has exceptionally low sky emission-about one-hundredth the flux as observed from Mauna Kea Observatory, making the measurement quite challenging. The instrument will be at a remote, unmanned site without access to liquid cryogens, making it necessary to use a low-power cooler such as a Ricor Stirling micro cooler.…”

Section: Introductionmentioning

confidence: 99%

Reducing noise from a Stirling micro cooler used with an InSb diode

Bingham

Ashley

2014

SPIE Proceedings

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Stirling micro coolers, such as the K508 from Ricor, are useful components of scientific instruments when there is a need to remove modest amounts of heat (∼1/2 W) at liquid nitrogren temperatures with an input power of less than 10 W. The action of the cooler can, however, couple noise into sensitive detectors through a variety of mechanisms such as electromagnetic interference, mechanical vibration, and small temperature fluctuations. We report on successful noise-mitigation strategies for our application, an InSb diode for detecting light at 2.4 microns. The largest benefit was obtained by sychronizing the integration times with the position of the piston in the micro cooler. The piston position was determined using a hall-effect rotor position sensor in the driving motor.

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Data release of the AST3-2 automatic survey from Dome A, Antarctica

Shang

et al. 2023

Monthly Notices of the Royal Astronomical Society

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AST3-2 is the second of the three Antarctic Survey Telescopes, aimed at wide-field time-domain optical astronomy. It is located at Dome A, Antarctica, which is by many measures the best optical astronomy site on the Earth’s surface. Here we present the data from the AST3-2 automatic survey in 2016 and the photometry results. The median 5σ limiting magnitude in i-band is 17.8 mag and the light curve precision is 4 mmag for bright stars. The data release includes photometry for over 7 million stars, from which over 3,500 variable stars were detected, with 70 of them newly discovered. We classify these new variables into different types by combining their light curve features with stellar properties from surveys such as StarHorse.

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Site characteristics of the high Antarctic plateau

Abstract: A brief review is given of the major results from the last twenty years of astronomical site-testing in Antarctica. Suggestions are made for how to resolve some outstanding questions, such as the infrared sky background at Antarctic sites other than South Pole station.

Cited by 3 publications

References 32 publications

Antarctic Survey Telescope 3-3: Overview, System Performance and Preliminary Observations at Yaoan, Yunnan

Antarctic Survey Telescope 3-3: Overview, System Performance and Preliminary Observations at Yaoan, Yunnan

Reducing noise from a Stirling micro cooler used with an InSb diode

Data release of the AST3-2 automatic survey from Dome A, Antarctica

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