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Observational Concerns and Techniques for High-Background Mid-Infrared (5–20 Micron) Array Imaging

Published online by Cambridge University Press:  07 August 2017

Daniel Y. Gezari
Daniel Y. Gezari*
Affiliation:
NASA/Goddard Space Flight Center Infrared Astrophysics Branch

Extract

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Broadband observations at 5–20 micron with large ground-based telescopes are dominated by thermal background radiation from the telescope optics, instrument and sky. Astronomical sources typically contribute less than one percent of the total detected flux. In most cases the direct, unprocessed image of a bright source (before background subtraction) is indistinguishable from an image of blank sky (Fig. 1). This paper gives an overview of the fundamental concepts, conditions and limitations of high-background mid-infrared imaging. The techniques used to acquire and process the image data are summarized, illustrated with examples from our 58 × 62 pixel mid-infrared camera astronomy program.

Type
Section I — Review Papers
Information
Symposium - International Astronomical Union , Volume 167: New Developments in Array Technology and Applications , 1995 , pp. 97 - 108
Copyright
Copyright © Kluwer 1995 

References

Gehrz, R. D. and Woolf, N. J. 1971 Ap J 165, 185.CrossRefGoogle Scholar
Gezari, D. Y. 1994 Proposal for Directors Discretionary Fund Support, NASA/Goddard Space Flight Center, (preprint).Google Scholar
Gezari, D. Y. and Backman, D. E. 1995 (submitted to Ap.J).Google Scholar
Gezari, D. Y., Folz, W. C., Woods, L. A., Wooldridge, J. and Varosi, F. 1992 Proc. SPIE, 973, 287.Google Scholar
Gezari, D. Y., Schmitz, M., Pitts, P. and Mead, J. L. 1993 Catalog of Infrared Observations, NASA RP-1294.Google Scholar
Gillett, F. C., Merrill, K. M. and Stein, W. A. 1971 Ap J 164, 83.Google Scholar
Hoffman, A. W. 1987 Proc. Hilo Detector Workshop, Univ. of Hawaii, p. 29.Google Scholar
Hoffmann, W., Fazio, G. G., Gezari, D. Y., Lamb, J., Shu, P. and McCreight, C. 1987 Proc. Hilo Detector Workshop, Wynn-Williams, G. and Becklin, E. E., eds., Univ. of Hawaii.Google Scholar
McCaughrean, M. J. 1988 Ph.D. Thesis, University of Edinburgh.Google Scholar
Rieke, G. H., Lebofsky, M. J. and Low, F. J. 1985 AJ 90, 900.Google Scholar
Tokunaga, A. T. 1984 AJ 89, 172.Google Scholar
Varosi, F. and Gezari, D. Y. 1992 Astronomical Data Analysis Software and Systems. II., Hanisch, R. J., Brissenders, R. J. V. and Barnes, J., eds., ASP Conf. Series 52, 393.Google Scholar