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J. Glenn (University of Colorado), J. J. Bock (Jet Propulsion Laboratory), S. Oliver (University of Sussex)
The European Space Agency's far-infrared and sub-mm Herschel Observatory is scheduled for launch in February 2007. A major component of the mission will be "Key Programs", designed to carry out large, coherent scientific investigations of lasting value to the astronomical community, similar to the Spitzer Legacy Programs. In this poster we discuss some of the scientific goals for extra-galactic surveys using the SPIRE (Spectral and Photometric Imaging REceiver) instrument on Herschel. Such surveys are expected to reveal (a) the far-infrared component of star-formation history in the high-z Universe (b) the discovery and investigation of rare, infrared luminous objects (c) obscured AGNs at high-z and (d) the large-scale structure and environments of star-forming galaxies. In addition, specialized programs for surveying clusters and probing the statistical properties of the far-infrared extra-galactic background are envisioned. We describe examples of possible surveys, detailing the sensitivities that may be reached and areas covered within practical limits of observing time. We provide predictions for such surveys including the expected number of sources of different classes and their redshift distributions. Coordinated observations with PACS, Planck, and ground based facilities are necessary to fully exploit the scientific potential of these surveys.
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Bulletin of the American Astronomical Society, 36 #2
© YEAR. The American Astronomical Soceity.