EAS Publications Series
Volume 25, 20071st ARENA Conference on "Large Astronomical Infrastructures at CONCORDIA, prospects and constraints for Antarctic Optical/IR Astronomy"
|Page(s)||147 - 154|
|Published online||23 May 2007|
N. Epchtein and M. Candidi (eds)
EAS Publications Series, 25 (2007) 147-154
Wide Field Astronomy at Dome C: two IR Surveys Complementary to SNAP
OAMP/LAM, Traverse du Siphon, BP. 8, 13376 Marseille Cedex 12, France
2 OAMP/LAM, 2 place Le Verrier, Marseille Cedex 4, France
3 ONERA, BP. 52, 29 avenue de la Division Leclerc, 92320 Chatillon Cedex, France
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 wavelength range from 1–5 µm, complementary to SNAP space surveys. The first one over 1000 sq. deg. (1 KdF) for 4 years and the second one over 15 sq. deg (SNAP-IR) for the next 4 years at the same time as SNAP 0.35–1.7 µm survey. By using a Ground-Layer Adaptive Optics system, we would be able to recover, at the ice level and over at least half a degree in radius, the ~300 mas angular resolution available above the 30-m high turbulent layer. Such a survey, combining a high angular resolution with high sensitivities in the NIR and MIR, should also play the role of a pre-survey for JWST and ALMA.
© EAS, EDP Sciences, 2007