IRS-TR 11002: Calibration of the Acquisition Images from the Red Peak-Up Sub-Array

Details IRS-TR 11002: Calibration of the Acquisition Images from the Red Peak-Up Sub-Array IRS-TR 11002: Calibration of the Acquisition Images from the Red Peak-Up Sub-Array

2011-08-03

arxiv.org/abs/1108.0919v1

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

IRS Technical Report - posted at http://isc.astro.cornell.edu/IRS/TechnicalReports

Scientific paper

We present a calibration of the acquisition data obtained by the Red Peak-Up (PU) sub-array on the Infrared Spectrograph on Spitzer, based on repeated observations of three K giants. This calibration is tied directly to the most current infrared calibration based on data from Multiband Imaging Photometer for Spitzer. An analysis of the responsivity of the Red PU sub-array reveals no detectable deviations from linearity in the most recent pipeline version, but older pipeline versions show evidence suggesting possible small non-linearities.

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