InfraRed Standards Used for SpectrophotometricCalibration — Application to the Medium ResolutionSpectrometer of MIRI

摘要

One of the main ingredients in establishing the relation betweeninput signal and output flux from a spectrometer, is the accurate determinationof the spectrophotometric calibration. In case of spectrometers onboard satel-lites, the accuracy of this part of the calibration pedigree is ultimately linkedto the reliability of the candidate calibrators as being fiducial. In this contribu-tion, we deal with the spectrophotometric calibration of infrared spectrometersin the 2-200 pm wavelength range. We outline a general selection procedure toarrive at a set of fiducial IR calibrators, and apply the method to the MediumResolution Spectrometer of MIRI which will be onboard the James Webb SpaceTelescope.