Wide Field Astronomy at Dome C: two IR surveys complementary to SNAP

Details Wide Field Astronomy at Dome C: two IR surveys complementary to SNAP Wide Field Astronomy at Dome C: two IR surveys complementary to SNAP

2006-11-17

arxiv.org/abs/astro-ph/0611556v1

Astronomy and Astrophysics

Astrophysics

Invited contribution to the 1st ARENA Conference on "Large Astronomical Infrastructures at CONCORDIA, prospects and constraint

Scientific paper

10.1051/eas:2007086

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 micron, 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 microns 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.

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