IAU02528
Presentation type requested: ORAL
SIRTF, SWIRE, AND THE HIGH REDSHIFT UNIVERSE
Carol J Lonsdale
IPAC, Caltech
SWIRE, the SIRTF Wide-Area InfraRed Extragalactic Legacy survey, will survey ~65 square degrees of high latitude sky in all 7 SIRTF imaging bands, tracing the evolution of dusty star-forming galaxies, evolved systems and AGN, in the context of cosmic structure formation, from z~3 to the current epoch. Combined with the other major SIRTF extragalactic surveys, the Guaranteed Time Observer deep surveys (G. Rieke and G. Fazio, PIs) and the GOODS Legacy survey (M. Dickinson, PI), SIRTF will reach the confusion limit at all wavelengths between 3 and 160 microns, detect several million IR-bright galaxies, and resolve the star formation history as a function of epoch and environment. SIRTF will observe the NIR rest frame peak photospheric emission of evolved systems (spheroids) out to z~4 with the IRAC camera, allowing us to directly track the build up of stellar mass with time. At longer wavelengths, SIRTF will measure star formation rates in dusty starburst events in the IR-luminous z~1-4 population, well known from SCUBA observations, and directly determine SFRs in Lyman Break Galaxy populations. SIRTF will also detect large numbers of AGN at mid-IR wavelengths, determining the contribution of accretion energy to the CIB.
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