The DENIS 2 Micron Survey and its Cosmological Applications

Details The DENIS 2 Micron Survey and its Cosmological Applications The DENIS 2 Micron Survey and its Cosmological Applications

1995-01-18

arxiv.org/abs/astro-ph/9501062v1

Astronomy and Astrophysics

Astrophysics

presented at 35th Herstmonceux Conference "Wide-Field Spectroscopy and the Distant Universe", held in Cambridge (U.K.) July 19

Scientific paper

Near-infrared surveys have very promising cosmological applications. The DENIS 2 micron survey, currently in camera-testing, is scheduled to begin in early 1995, and to map the entire southern sky in the $I$, $J$, and $K'$ bands. The steps for the near-homogeneous extraction of $\sim 10^5$ galaxies are outlined, some pitfalls are given, and the estimated limiting capabilities of the survey are presented. A preliminary $J$-band image illustrates these capabilities and some of the hidden pitfalls. The necessary spectroscopic followup is shown to be feasible on a reasonably short timescale.

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