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The Infrared Array Camera (IRAC) for the Spitzer Space Telescope

The Astrophysical Journal Supplement Series · 2004 · Vol. 154(1) · pp. 10–17

G. G. Fazio✉(Center for Astrophysics Harvard & Smithsonian)Joseph L. Hora(Center for Astrophysics Harvard & Smithsonian)Shadab Alam(Center for Astrophysics Harvard & Smithsonian)M. L. N. Ashby(Center for Astrophysics Harvard & Smithsonian)P. Barmby(Center for Astrophysics Harvard & Smithsonian)L. K. Deutsch(Center for Astrophysics Harvard & Smithsonian)Jiasheng Huang(Center for Astrophysics Harvard & Smithsonian)Sandra Kleiner(Center for Astrophysics Harvard & Smithsonian)M. Marengo(Center for Astrophysics Harvard & Smithsonian)S. T. Megeath(Center for Astrophysics Harvard & Smithsonian)Gary J. Melnick(Center for Astrophysics Harvard & Smithsonian)M. A. Pahre(Center for Astrophysics Harvard & Smithsonian)B. M. Patten(Center for Astrophysics Harvard & Smithsonian)J. J. Polizotti(Center for Astrophysics Harvard & Smithsonian)H. A. Smith(Center for Astrophysics Harvard & Smithsonian)Rebecca S. Taylor(Center for Astrophysics Harvard & Smithsonian)Z. Wang(Center for Astrophysics Harvard & Smithsonian)S. P. Willner(Center for Astrophysics Harvard & Smithsonian)W. F. Hoffmann(University of Arizona)J. L. Pipher(University of Rochester)W. J. Forrest(University of Rochester)C. W. McMurty(University of Rochester)Craig R. McCreight(Ames Research Center)Mark E. McKelvey(Ames Research Center)Robert E. McMurray(Ames Research Center)David Koch(Ames Research Center)S. H. Moseley(Goddard Space Flight Center)Richard G. Arendt(Goddard Space Flight Center)John E. Mentzell(Goddard Space Flight Center)Catherine T. Marx(Goddard Space Flight Center)Patricia A. Losch(Goddard Space Flight Center)P. Mayman(Goddard Space Flight Center)William L. Eichhorn(Goddard Space Flight Center)Danny J. Krebs(Goddard Space Flight Center)M Jhabvala(Goddard Space Flight Center)D. Y. Gezari(Goddard Space Flight Center)D. J. Fixsen(Goddard Space Flight Center)J. R. Flores(Goddard Space Flight Center)Kamdin B. Shakoorzadeh(Goddard Space Flight Center)Ray Jungo(Goddard Space Flight Center)Claef Hakun(Goddard Space Flight Center)Lois G. Workman(Goddard Space Flight Center)Gabriel Karpati(Goddard Space Flight Center)Robert A. Kichak(Goddard Space Flight Center)R. M. Whitley(Goddard Space Flight Center)Steven D. Mann(Goddard Space Flight Center)E. V. TollestrupPeter Eisenhardt(Jet Propulsion Laboratory)Daniel Stern(Jet Propulsion Laboratory)Varoujan Gorjian(Jet Propulsion Laboratory)B. Bhattacharya(California Institute of Technology)S. Carey(California Institute of Technology)B. Nelson(California Institute of Technology)W. Glaccum(California Institute of Technology)Mark Lacy(California Institute of Technology)Patrick Lowrance(California Institute of Technology)Seppo Laine(California Institute of Technology)W. T. Reach(California Institute of Technology)John Stauffer(California Institute of Technology)J. Surace(California Institute of Technology)G. Wilson(California Institute of Technology)E. L. Wright(University of California, Los Angeles)Alan W. Hoffman(RTX (United States))George Domingo(RTX (United States))Martin Cohen(University of California, Berkeley)

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Abstract

The Infrared Array Camera (IRAC) is one of three focal plane instruments in the Spitzer Space Telescope. IRAC is a four-channel camera that obtains simultaneous broad-band images at 3.6, 4.5, 5.8, and 8.0 microns. Two nearly adjacent 5.2x5.2 arcmin fields of view in the focal plane are viewed by the four channels in pairs (3.6 and 5.8 microns; 4.5 and 8 microns). All four detector arrays in the camera are 256x256 pixels in size, with the two shorter wavelength channels using InSb and the two longer wavelength channels using Si:As IBC detectors. IRAC is a powerful survey instrument because of its high sensitivity, large field of view, and four-color imaging. This paper summarizes the in-flight scientific, technical, and operational performance of IRAC.

Stellar, planetary, and galactic studies Astro and Planetary Science Astronomical Observations and InstrumentationCardinal pointSpitzer Space TelescopePhysicsInfraredOpticsDetectorLarge formatField of viewPixelTelescope

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