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Proceedings Paper

Infrared array camera (IRAC) for the Space Infrared Telescope Facility (SIRTF)
Author(s): Giovanni G. Fazio; Joseph L. Hora; Steven P. Willner; John R. Stauffer; Michael L. N. Ashby; Zhong Wang; Eric V. Tollestrup; Judith L. Pipher; William J. Forrest; Craig R. McCreight; Samuel Harvey Moseley; William F. Hoffmann; Peter Eisenhardt; Edward L. Wright
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Paper Abstract

The Space IR Telescope Facility (SIRTF) contains three focal plane instruments, one of which is the IR Array Camera (IRAC). IRAC is a four-channel camera that provides simultaneous 5.12 X 5.12 arcmin images at 3.6, 4.5, 5.8 and 8 microns. The pixel size is 1.2 arcsec in all bands. Two adjacent fields of view in the SIRTF focal plane are viewed by the four channels in pairs. All four detector arrays in the camera are 256 by 256 pixels in size, with the two short wavelength channels using InSb and the two longer wavelength channels using Si:As IBS detectors. The IRAC sensitivities at 3.6, 4.5, 5.8, and 8.0 microns are 6, 7, 36, and 54 microJanskys, respectively. Two of the most important scientific objectives of IRAC will be to carry out surveys to study galaxy formation and evolution during the early stage of the Universe, and to search for brown dwarfs and superplanets.

Paper Details

Date Published: 21 August 1998
PDF: 8 pages
Proc. SPIE 3354, Infrared Astronomical Instrumentation, (21 August 1998); doi: 10.1117/12.317225
Show Author Affiliations
Giovanni G. Fazio, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Joseph L. Hora, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Steven P. Willner, Harvard-Smithsonian Ctr. for Astrophysics (United States)
John R. Stauffer, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Michael L. N. Ashby, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Zhong Wang, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Eric V. Tollestrup, Harvard-Smithsonian Ctr. for Astrophysics (United States)
Judith L. Pipher, Univ. of Rochester (United States)
William J. Forrest, Univ. of Rochester (United States)
Craig R. McCreight, NASA Ames Research Ctr. (United States)
Samuel Harvey Moseley, NASA Goddard Space Flight Ctr. (United States)
William F. Hoffmann, Steward Observatory/Univ. of Arizona (United States)
Peter Eisenhardt, Jet Propulsion Lab. (United States)
Edward L. Wright, Univ. of California/Los Angeles (United States)


Published in SPIE Proceedings Vol. 3354:
Infrared Astronomical Instrumentation
Albert M. Fowler, Editor(s)

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