Abstract The recent advent of sensitive infrared array detectors has enabled ground-based astronomers to obtain images of comparable depth at wavelengths from 0.35 to 2.2 μm, thus greatly extending the observational coverage of spectral energy distributions for high redshift objects. Infrared arrays available at the present time have been applied with considerable success, but these detectors still have certain limitations for studies of the universe at high redshifts, one of which is their small field of view on the sky. Over the next few years, however, prospects are good for improving the formats of near-infrared arrays up to 512 × 512 pixels, and achieving excellent low-noise performance. Combined with large aperture telescopes and active optics techniques, infrared arrays will approach the condition of being simultaneously background- and diffraction-limited. The potential for very deep infrared imaging and near-IR spectroscopy of objects at high z is discussed.


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    Title :

    Prospects for large-format infrared arrays for astronomy


    Contributors:

    Published in:

    Advances in Space Research ; 11 , 2 ; 317-320


    Publication date :

    1991-01-01


    Size :

    4 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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