AAS 204th Meeting, June 2004
Session 33 Early Science Results from the Spitzer Space Telescope
Topical Session, Tuesday, June 1, 2004, 8:30-10:00am, 10:45am-12:30pm, 2:30-4:00pm, 4:15-6:00pm, 601

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[33.14] Early Results from the Spitzer Wide-area InfraRed Extragalactic (SWIRE) Survey

Carol J. Lonsdale (California Institute of Technology), Spitzer Wide-Area Infrared Extragalactic Survey Team

SWIRE will image about 50 square degrees of high latitude sky in all 7 IRAC and MIPS imaging bands, in 6 of the best wide-area cosmic windows through the Galaxy, providing the widest area tier of Spitzer's suite of extragalactic surveys. SWIRE is optimised to study the evolution of spheroids, spirals, starbursts and AGN within the context of large scale structure, over matched volumes of the Universe to z>2. It will detect about 2.25 million galaxies and provide the largest Spitzer survey volume for the discovery of rare objects.

I will present the first results from the survey, based on observations in the Lockman Hole and the ELAIS N1 SWIRE fields, and including extensive complementary Ug'r'i'K, X-ray and radio imaging, and optical spectroscopy. A spetroscopically-calibrated photometric redshift distribution to z>3 will be presented. I will discuss the population characteristics from multi-parameter flux-color-z analyses and from detailed SED fitting, and compare the results to the predictions of evolution models. Initial investigations of the 2D and 3D correlation functions will be presented. I will also discuss early results of our search for rare objects.

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