- Diffuse Infrared Background Experiment
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DIRBE instrument lightpath
Diffuse Infrared Background Experiment (DIRBE)[1] was an experiment on NASA's COBE mission,[1] to survey the diffuse infrared sky. The DIRBE instrument was an absolute radiometer with an off-axis folded-Gregorian reflecting telescope, with 19 cm diameter aperture.[1] The goal was to obtain brightness maps of the universe at ten frequency bands ranging from the near to far infrared (1.25 to 240 micrometer).[1] Also, linear polarization was measured at 1.25, 2.2, and 3.5 micrometers.[1] During the mission, the instrument could sample half the celestial sphere each day.[1]
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References
- ^ a b c d e f Riccardo Giacconi, Daniela Calzetti, Mario Livio, Piero Madau, Space Telescope Science Institute (U.S.) - Extragalactic background radiation: a meeting in honor of Riccardo Giacconi : proceedings of the Extragalactic Background Radiation Meeting, Baltimore, 1993 May 18-20, Volume 1993 - Page 137 (Google Books accessed October 2010)
Other infrared surveys
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