Infrared surveys from Antarctica

Astronomy and Astrophysics – Astronomy

Scientific paper

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Galactic Evolution, Galactic Formation, Quasars, Brown Dwarfs

Scientific paper

The very low background observed from Antarctica in a window from about 2.25 to 2.45 microns can be exploited as a way of making deep near-IR surveys over wide areas of sky. Imaging surveys using the entire window can cover large areas of sky to limits of around K = 20, and can be used to study galaxy evolution and to search for high-redshift quasars, dust obscured quasars and brown dwarfs. It is also possible to make spectroscopic surveys in this window. The window includes molecular hydrogen emission and CO absorption in galactic sources, and can also be used to search for emission lines such as H-alpha in high-redshift star forming galaxies.

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