Spitzer Space Telescope - Archive Research Proposal #3117 The Spitzer First Look Survey Extragalactic SED Database Principal Investigator: Lisa Storrie-Lombardi Institution: Caltech Co-Investigators: Gordon Squires, Spitzer Science Center Jason Surace, Spitzer Science Center Harry Teplitz, Spitzer Science Center Gillian Wilson, Spitzer Science Center Lin Yan, Spitzer Science Center Myungshin Im, Seoul National University Phil Appleton, Spitzer Science Center Lee Armus, Spitzer Science Center Dario Fadda, Spitzer Science Center David Frayer, Spitzer Science Center Ingolf Heinrichsen, Spitzer Science Center George Helou, Spitzer Science Center Francine Marleau, Spitzer Science Center Dave Shupe, Spitzer Science Center Mark Lacy, Spitzer Science Center Science Category: AGN/quasars/radio galaxies Dollars Approved: 96741.0 Abstract: The extragalactic component of the Spitzer First Look Survey (FLS) reaches the same depth as the deepest ISO surveys yet covers an area 1500 times as large. It opens up an enormous amount of discovery space given the increased depth, improved resolution, and areal coverage that Spitzer provides. The extragalactic FLS team at the Spitzer Science Center has been involved in the planning of the survey since its inception and we have gathered a substantial ancillary data set, from optical through radio wavelengths, to maximize the science return of the survey. We have several science programs underway and a common feature to most is the need for photometric redshifts for the thousands of galaxies detected in the survey. We are requesting one year of funding for a post-doc to focus on this effort and we will return to the community via NED a database with the multiwavelength SEDs and photometric redshifts for the survey galaxies.