Fig. 7.
Point source spectra extracted from three isoalpha lines on the detector. A point source integrated spectrum is computed by summing the signal in the three isoalpha lines. The resulting spectrum represents the LED source spectrum multiplied by the optical transmission from the LED to the MIRI instrument, multiplied by the MRS instrument response in band 1A (approximately 1.2 (DN/s)/milliJansky).
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