Probing Dark Energy with the Kunlun Dark Universe Survey Telescope

Abstract

Dark energy is an important science driver of many upcoming large-scale surveys. With small, stable seeing and low thermal infrared background, Dome A, Antarctica, offers a unique opportunity for shedding light on fundamental questions about the universe. We show that a deep, high-resolution imaging survey of 10,000 square degrees in \emph{ugrizyJH} bands can provide competitive constraints on dark energy equation of state parameters using type Ia supernovae, baryon acoustic oscillations, and weak lensing techniques. Such a survey may be partially achieved with a coordinated effort of the Kunlun Dark Universe Survey Telescope (KDUST) in \emph{yJH} bands over 5000--10,000 deg${}^2$ and the Large Synoptic Survey Telescope in \emph{ugrizy} bands over the same area. Moreover, the joint survey can take advantage of the high-resolution imaging at Dome A to further tighten the constraints on dark energy and to measure dark matter properties with strong lensing as well as galaxy--galaxy weak lensing.

9 pages, 6 figures

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• Astronomy in Antarctica
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• Photometric Variability in the CSTAR Field: Results From the 2008 Data Set
• Model Independent Tests of Cosmic Gravity
• Data--driven Image Restoration with Option--driven Learning for Big and Small Astronomical Image Datasets
• Astronomy from Dome A in Antarctica
• Optimising the K dark filter for the Kunlun Infrared Sky Survey
• Next Generation Deep 2 micron Survey