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  • Infrared Instruments  (1)
  • starburst  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Characterization of solid state array cameras for the mid-IR (1992)
    Springer
    International journal of infrared and millimeter waves 13 (1992), S. 1709-1725 
    Details
    ISSN: 1572-9559
    Keywords: Infrared Astronomy ; Infrared Instruments ; Infrared Imaging ; Detector Arrays
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present a characterization of some processes affecting the performance of solid state array cameras designed for ground based astronomical imaging in the 8–13μm atmospheric window. Our discussion includes a novel model for electron-hole generationrecombination noise based on the probable pathlength of an electron in a photoconductor. We use the Berkeley mid-IR Array Camera as an example. For this camera, the results show that the total optical system composed of the camera, a 3m telescope, and the atmosphere has an efficiency of about 3%, a 1σ noise equivalent flux density of 25 mJy min−1/2arcsec−2 measured over a Δλ/λ=10% band width, and a noise equivalent expressed as the ambient temperature thermal black body noise of 23%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01010740
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  • 2
    Electronic Resource
    Electronic Resource
    The mid-IR radio correlation at high angular resolution: NGC253 (1994)
    Springer
    Experimental astronomy 3 (1994), S. 161-162 
    Details
    ISSN: 1572-9508
    Keywords: galaxies ; starburst ; galaxies ; individual ; NGC253 ; infrared ; galaxies
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract We present high angular resolution (1.2″), narrow band (αλ/λ=0.1) images of the nucleus of NGC253 at three wavelengths in the mid-IR (8.5, 10.0, and 12.5 μm). We find that most of the mid-IR flux in the nucleus of NGC253 derives from a very small region ≤120 pc in diameter. Within this small region there are three spatially and spectrally distinct IR components: two bright compact sources, and a surrounding envelope of low level, diffuse emission. The mid-IR and 6cm radio are loosely correlated in position but not in brightness. The implication is that the mid-IR - radio correlation may begin to break down on small spatial scales relevant to individual star forming regions and large individual sources. These variations in the mid-IR spectra and in the radio-IR correlation imply that the nuclear emission is excited by more than one mechanism and source type.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00430148
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