Infrared Array Camera

The sensitivity of the Infrared Array Camera (IRAC) camera on board the Spitzer Space Telescope (Fazio et al. 2004) recently allowed to characterize in detail the decrease in disk frequency with stellar age and trace dust slightly cooler than that observed in the L-band, out to about 1AU from T Tauri stars. Figure 9.2 shows the fraction of T Tauri stars (mostly K and M stars) with infrared excess at IRAC wavelengths (3.6, 4.5, 5.8, and 8 pm, full circles). In addition to the data (and references) presented in Hernandez et al. (2008) we have included the disk statistics... 

IRAC Infrared Array Camera, the short-wavelength (3-8 pm) imaging instrument on board the Spitzer Space Telescope. 

The data were taken with the Infrared Array Camera (IRAC Fazio et al. 2004) on the Spitzer Space Telescope during the hrst five IRAC campaigns of normal operations (2003 December - 2004 April). 

The InfraRed Array Camera (IRAC) provides imaging at shorter wavelengths with bands centered at 3.6, 4.5, 5.8 and 8.0 /txm. The 3.6 and 4.5 fim bands utilize two 256 X 256 pixel In Sb detector arrays while the two longer bands utilize 256 x 256 pixel Si As impurity band conduction detectors. Although there are four photometric bands IRAC has only two entrance apertures. Dichroic beam splitters allow the 3.6 and 5.8 band to share one aperture while the 4.5 and 8.0 bands share the other. This doubles the efficiency for multiband observations. 

We have used the RockweU Nicmos 3 infrared array camera described in Persson et al (1992) at the Cassegrain focus of the 40—indi Swope telescope at the Las Campanas Observatory in ChUe for 5 nights in June 1992. This... 

Determination of the mass spectra of the stars in their initial state is crucial in understanding the star formation process. The observational approach for such a study is first to define the presmt day luminosity function firom the embedded sources, i.e. the candidates of the young stellar objects, in the molecular clouds. Thanhs to the progress of the infrared array camera, large scale mapping in the infrared is now conceivable. 

Infrared Array Camera (IRAC) - G. Fasio, P.I., Smithsonian Astrophysical Observatory. Will use IhSb and Si As arrays and dic oic to provide simultaneous imaging, polarimetry in two bands, grism spectroscopy with InSb. 

A NOVEL SAMPLING TECHNIQUE FOR IMAGE SHARPENING IN INFRARED ARRAY CAMERAS... 

A POWERFUL NEW INFRARED ARRAY CAMERA FOR THE NASA INFRARED TELESCOPE FACILITY... 

In September 1993 we will commissioa a 1.0-5.5 /xm infrared array camera for the 3.0-meter NASA Infrared Telescope Facility (IRTF) on Manna Kea, Hawaii. This camera incorporates a Santa Barbara Research Center (SBRC) 256x256 LiSb array. Rather than giving a detailed description of the entire system (provided in Bayner et ol. 1993), we summarize briefly the overall camera design and then concentrate on one of the first innovative observing modes to be implemented real-time shift add speckle imaging. We present some first results with the camera at the telescope. 

THE JPL DEEP-WELL MID-INFRARED ARRAY CAMERA 3. Camera Design... 

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