Understanding the NICMOS Darks

Details Understanding the NICMOS Darks Understanding the NICMOS Darks

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aas...191.1004b&link_type=abstract

American Astronomical Society, 191st AAS Meeting, #10.04; Bulletin of the American Astronomical Society, Vol. 29, p.1225

Astronomy and Astrophysics

Astronomy

1

Scientific paper

This paper describes the characteristics of the `dark current' for the NICMOS flight detectors, namely the instrumental signal present in exposures made in the absence of any external illumination. We show how this comprises three distinct components - the shading, amplifier glow, and the true dark current. We then describe a recipe for generating `synthetic' dark current calibration reference files, which could in principle be used to generate darks for any arbitrary sequence of MULTIACCUM reads.

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